Why are so many people so obsessed with Trump?

There is a technical reason. And some subjective ones. Acting in a synergic manner.

Trump had bean the darling of the high ratings/low expectations media for most of his adult life. During this period he had learned how to use it towards his own goal – an ever increasing notoriety, and those involved in the media had learned to love him back for the amount of publicity they had been able to sell on his back.

Now for the subjective ones.
First of all, he is a very ‘penetrant’ person. Like him or not, but you can’t ignore him.
Secondly, he happens to be the most powerful individual on Earth. Simply because he had been elected the President of the United States of America. Which is not only the most potent/civilized/democratic/you name it country, but also the leader of the free world. Meaning that the rest of the planet, democratic or not, sets it’s time after America’s clock. Willingly or unwillingly.
So the rest of world is watching anxiously everything that is going on in Washington. Wondering whether ‘Trump-ism’ will spread around. Or will remain yet another measure of American exceptionalism.

Thirdly, but maybe the most important reason, Trump can be analyzed as a symptom rather than as a cause.
In fact, there are a lot of Trumps scattered around the world.
Basically, there is very little difference between Trump and Putin. Trump and Erdogan. Trump and Bolsonaro. Trump and Dragnea – the most powerful politician in today’s Romania, my country. Even between Trump and Modi. Only none of these countries is similar to the US of A. None of them has such a distinguished democratic tradition.
And this is why so many people try to understand what’s going on.
Is Trump nothing more than an unhappy accident? Or the visible symptom of democracy becoming decrepit?

PS.
Even Abe is showing signs of contagion.
Post WWII Japan had survived by feeding whales to its people.
Now it is going to resume commercial whaling. In spite of all other previously whaling nations asking him to reconsider.
Really Abe? You need whale meat to survive?