American culture has lost its near-monopoly on optimism. We're now almost as cynical as the Europeans. (:D)
That cynicism means civic disengagement, technological doomerism and general symptoms of depression. That collectively degrades the mostly bottom-up structures we've long relied on, requiring shifts to less-efficient (and hastily cobbled together) top-down command structures.
By what metric? You have to go through Scandinavia, Germany, Spain, and a few Eastern european countries before you get to the US on voter turnout. Not to mention labor unions striking as a form of political protest (eg Italian labor unions striking against the Gaza war). And depression prevalence also seems to be higher in the US. Did you mean worse than Europe instead of "almost as" bad?
https://www.pew.org/en/trend/archive/fall-2024/americans-dee...
The ad-powered social media addiction stopped brainwashing?
If one wanted deeply pessimistic takes on America and Americans, there has been a media market for that since at least the advent of cable news. Mistaking TikTok, one expression of a phenomenon, for the general trend is mistaking a tree for a forest.
Pre-sale TikTok was the first time that a mirror was held up to US politics from a global perspective, where the masses could get a less fitered and channeled understanding of how they are seen by the world. (Reddit provided this previously but it has fewer users and less impact.)
As much as I hate TikTok and short videos, it had a big impact. There’s a reason that they forced the sale. Domestic control of mass media consumption is the primary method by which public opinion is shaped within the US.