There’re no blinder people
than those who don’t want to see…

Attempting to determine who ‘made that’ is similar to trying to find out which came first.
The chicken or the egg…
As if one was possible without the other…

Yeah, it’s labor which makes each thing.
And it’s capitalism which makes things possible…

Capitalism is a setting. A way of doing business.
Labor is a process. Through which some things – ideas included – are transformed into solutions.

If you want to plant a tree, you have to dig a hole.
If there was no shovel around – no capital available – you’d have to dig the hole using your bare hands. And dig the sapling out from the forest. Still bare handed.
If you happen to live in a capitalist setting – you may borrow a shovel and a sapling, if you didn’t have them already. And start an orchard.

The interest is too high? Capital has become too concentrated/expensive?
It happens from time to time. Usually just before a major crises.

Is there anything that might be done? To mitigate this boo-bust cycle?
Make sure the market remains actually free. That no one becomes too powerful.
Too powerful for our own good.

The Sherman Antitrust Act “makes it illegal to monopolize, conspire to monopolize, or attempt to monopolize a market for products or services“.
The Clayton Act “aims to promote fair competition and prevent unfair business practices that could harm consumers.“

Actually simple… if dully implemented …

And don’t fool yourself.
Socialism is nothing but state-run capitalism. A bunch of con-men take over the government and make all the decisions. Everything of value – all capital – theoretically belongs to the people and all the meaningful shots are called exclusively by the big shots who control the government.
Fascism, the other ‘alternative’ experimented during the XX-th century, is very much similar. Property remains, theoretically, private but the major calls are also called by the big shots who control the government.