Basically, there has always been a strong bias and structural constraints toward US / elite views.
I think the core question is why trust has gotten particularly bad over the last decade (I have some ideas, including one side particularly trying to weaken trust in it).
Chomsky and other critical theorists and marxists pointed out that those in power get to dictate what's truth, what's news, what values we should follow. Once you realize that, the next step was supposed to be revolution followed by a world with no power structure.
The various revolutions of the 20th century never worked out that way, and nobody wants to risk their life for that stuff anymore. Meanwhile I think we've all assimilated Chomsky's view that the system is rigged and that everything is a lie or a distortion invented to perpetuate the power structure.
There's no more trust because there's nobody to trust in. You either keep your head down and just try to exist, or you lie to yourself and pick out which lies you want to buy into.
Mediocre blatherers like Jordan Peterson (to pick just one example) have captured the hearts and minds of young people because most "real" work in the humanities is locked behind not just academic paywalls but an impenetrable wall of inward-focused jargon. Humanities work is written for other people in the humanities, not the public. It also tends to deal with subjects that are not of interest to 90%+ of the public.
A huge vacuum has been created, and it's been filled with shit because it's there so something's going to fill it.
P.S. For the inevitable defenders of Jordan Peterson: go read Carl Jung, Joseph Campbell, G.K. Chesterton, and CS Lewis, to name a few. Peterson is one of those people for whom I'd say "what he says that's interesting is not original, and what he says that's original is not interesting." Take away the authors he draws from and what's left is a mix of stoner-esque rambling (though apparently without the pot?) and something like an attempt at highbrow Andrew Tate. The latter is why I genuinely dislike the guy more than I would if he were just, say, a self-help quack, which he also is.
Meanwhile I routinely hear Humanities students run their mouths about Marxism without even knowing who Hegel is. Or ranting about slavery while thinking that the Arab Slave Trade and the British Anti-Slavery campaign are just revisionist ideas. I ask myself all the time, what exactly do Humanities students get taught these days? Do they learn anything from before the days of Critical Theory?