The human head works like an organic computer.
It has a ‘hard’ component. Which is actually soft. The brain tissue.
And many levels of ‘software’.

You might want to skip this introductory part if you’re not familiar with/interested in how computers work
The ‘machine code’. The inner workings of the brain. The ‘things’ which continue to function when we’re not at all conscious. Breathing, coordination of the of various organs which keep us alive, etc.
‘Assembly language’. The level which works on ’emotions’/’feelings’. A not yet conscious baby suckles when hungry and cries when uncomfortable. A patient with dementia is not a ‘fully functional human being’ but can learn/retain many human functions.
‘High-level language’. Human conscience. While the ‘machine code’ and the ‘assembly language’ levels run in the ‘background’, human conscience constantly evaluates ‘what’s going on’ and decides ‘the next move’.

Humans, like computers, work a lot better when ‘put together’.
Each individual’s human conscience develops only ‘in concert’ with other people while the most powerful computer chip is ‘dead’ before the operating system has been installed. A (mature) individual human being might survive in isolation, but not for very long. A computer is completely useless if not ‘put to work’ by an ‘operator’. Alone or ‘inside’ a network.

Computers can ‘cooperate’ because we made them so.
Even if using various operating systems and communication protocols, we – humans, have developed them – computers, in such a way that we can communicate with them and they can communicate among themselves.

For humans to be able to communicate among themselves, they need a common language.

Computers do not need to coordinate among themselves. We’ve made them, instructed them, in such a manner that they (still) do what they are told.

For humans to be able to coordinate themselves – to act in a congruent manner, they need to use – or at least to acknowledge, the same referential system.

To think ‘alike’ or, at least, to acknowledge that ‘those who do not think like me/us might have a point’.

Historically speaking, humankind has achieved ‘coherence’ through the use of ‘religion’.

‘Reality’ – which was far more complex ‘before’ simply because the unknown is the place where fantasy is free to give birth to anything, had to be tamed. Translated into ‘operable’ things. Into generally accepted concepts. Into generally accepted ‘myths’.
And for as long as a given set of ‘foundational myths’ had maintained their ‘magic’, the religion which had been developed starting from those myths had continued to be ‘the coalescing factor’ for the community which believed those myths. Or, at least, behaved as if those myths were still ‘valid’.
Whenever those myths had failed – or were no longer enough, the corresponding religion had been quickly replaced. By another.
This was the heave-ho approach. Wholesale replacement of the referential system, which is both ‘wasteful’ and time-consuming.

In time, people have learned that it was far more ‘efficient’ to pay ‘lip service’ to each-other’s opinions
when the other side was too ‘strong’ for outright ‘coercion’. Read “conversion”.

When/where things had become ‘ripe’, some people had invented ‘science’.

Science, like religion, is a manner of thinking. A manner of translating reality into something which can be managed by the human brain.

Religion relies on a set of ‘axioms’. Which had been considered true – by those who had established any given religion, at the moment when that particular religion had been established. When freshly acquired knowledge diverges too far – and too convincingly, from the until then generally accepted ‘founding myths’, the religion which depends on those myths conserving their ‘allure’ is abandoned in totum.

Science, on the other hand, relies on a different set of ‘beliefs’.
Derived from the basic tenet of the Judaeo-Christian creed and no less axiomatic but still different.
The point being that instead of trying to fit any new information into the previously held set of ‘teachings’ science mandates the diligent use of the ‘scientific method’ whenever we attempt to evaluate any ‘piece of knowledge’:

Reproducibility: ‘do I find/learn the same thing each and every time I examine this phenomenon/class of objects using this particular procedure?

Peer review: Does everybody else who examines the same subject, using the same procedure, reach the same results? In earnest?

Falsifiability: Does the subject of our musing have a correspondent in reality? Are we concerned about something which has consequences? Can this particular ‘piece of knowledge’ be proven wrong? Or, at least, incomplete?

The three paragraphs above have described the scientific method yet I still have to mention the Judaeo-Christian belief without which science makes absolutely no sense.

“Then God said, “Let Us make man in Our image, after Our likeness, to rule over the fish of the sea and the birds of the air, over the livestock, and over all the earth itself and every creature that crawls upon it“.

According to the Old Testament, God had made man to “rule… over all the earth itself”. Which means that God was going to refrain himself from performing other miracles. The Earth being entrusted to the rule of man means that man was going to ‘see’ the same thing each and every time he was looking at the same thing. From that moment, ‘things’ were going to ‘happen’ in a ‘rigorous’ manner. No more ‘hanky-panky’, no more divine intrusion. From then on, things were going to happen according to the ‘law’. ‘Regularly’, hence ‘reproduciblely’. In a consistent manner!
Again according to the Old Testament, ‘God had made man in His image’. Hence all men – and women, had been created equal. In the same image, that is. And all men – and women, harbor something ‘special’. A spark of divinity! They have all been created in the image of God itself, hence they all should respect each-other. And each-others’ opinions! Hence ‘peer-review’.
All that remains to be ‘explained away’ is the small matter of falsifiability. Of science concerning itself only with verifiable subjects. Which brings us back what was the man supposed to rule over. ‘The earth itself’. The realm of reality. Man – men and women, were supposed to rule over ‘reality’, not over other people.
They were supposed to concern themselves with ‘evident’/measurable things found ‘on earth’, not with ‘fancy’ figments of ‘unaccountable imagination’.

Ooops!
If both religion – well, at least the Judaeo-Christian one, and science depend on the same axiom/fundamental myth, then where’s the difference?
As I mentioned before, whenever fresh knowledge contradicts ‘irreparably’ the before held religious convictions, the community who upholding those convictions reaches a ‘passage rite’. Has to either ‘close its eyes’ – actually denying reality, or change its religion. The very definition of the ‘heave-ho’ approach.
For those using the ‘scientific method’, things are a lot simpler. And smoother. For them, reality suffers a constant change. Piece-meal instead of wholesale. ‘Easy-does’ it instead of ‘gung ho’.

One other thing before I let you go.

“If you’re not a scientist, and disagree with scientists about science, that’s not disagreement! You’re just wrong!”

Well, this is the most unscientific thing I’ve read for a long time.
What comes next makes absolute sense. If you apply the scientific method to “Science is not truth. Science is finding the truth.” you determine that the message is consistent, agreed among the peers and falsifiable. Science can be misused and, potentially, the very meaning of the word can change in time. For now, the generally accepted meaning of ‘science’ is, indeed, ‘the path towards truth’. And, by definition, all scientific knowledge is considered to be ‘improvable’. Hence forever ‘not yet true’.
Coming back to the ‘disagreement’ part, this is an obvious ‘sleigh of hand’. For starters, ‘scientists’ do not concern themselves with ‘science’. Each of them controls an area of expertise. Which is not the entire science…
Furthermore, what does it mean ‘you’re not a scientist’?!? You don’t have a formal accreditation? Anybody who uses the scientific method when examining the reality is a scientist, regardless of their credentials.
I presume the author meant well. There are quite a few people out there who are in the ‘business’ of sowing doubt. Who contradict whatever ‘starts their ire’. Who very ‘skillfully’ spin apparently convincing words about subjects of utmost importance. But if we want to remain true to our words, if we want to remain on the straight and narrow path to truth, we must convince our audience with arguments. We must un-spin those ‘words’ in a rigorous manner.
Using the very same set of ‘spinning skills’ downgrades us to ‘their’ level.
As the saying goes, ‘Don’t allow your opponents to drag you to their level of expertise. Remain on yours. Any attempt to beat the other guy using their weapons will, more often than not, yield the undesired result. For the obvious reason that they have used those weapons for far longer than you’.