They don't ever browse the internet?
They never watch tv?
And they never have conversations with somebody who has?
I'd assume the average american has a rough idea of what's going on. You'd have to try pretty hard to avoid it.
Of course people are going to prioritise their daily issues and the things that directly affect them, but don't pretend that nobody ever gets spare time. There wouldn't be multi-billion dollar media companies if that were the case.
It just seems like people prefer media consumption / escapism over education.
Are you suggesting that the algorithms for every website are pro-trump?
Algorithms mostly care about profit and user engagement.
Go check the front page of reddit and see how most political posts are about trump's/america's fuck ups.