I think it is because the wealthy have constantly reduced the wealth of the average American. Each individual has to spend more time working, for less pay. This deteriorates their mental and physical health, prevents socialization, saps energy, limits the amount of money, time, and travel they can spend on politics.
IMO, the "lazy" European gets about 95% of an American's work efficiency for the time spent, but are not nearly as damaged by their work/life ratio. This lets them have far greater agency in the politics of their land. If this continues, I think the assorted cultures of Europe will be far more documented in history than their American peer. The corrosion from beating the good life out of American workers, means that there is little incentive for Americans to want their culture to survive nor spread.
Current politics are partially driven by apathy, one born from the learned helplessness that life won't get any better. We will need French cutlery to be deployed, so that the blood of tyrants can water the tree of liberty. Just as with the French, I think America can recover from a dead end. Whether that happens...well, we will see within a decade.
Here's hoping the good guys destroy Dogey America, and replace it something that people can take pride in.
I was raised in a rural area. The amount of friends I made in life after forty years is...zero. Aside from a sibling, I don't have anyone to count on. I am also too poor to afford visiting bars or other social things, so I can't learn how to be around people, let alone establish ties. It is my belief that America's shitty economy is the source of these issues, because a person can't blossom if they don't have the fiscal agency to escape a tiny bubble.
The internet let me develop as a person, but that can only go so far. I can't afford risks, such as trying beer, an escort to lose my virginity, or travel. Poverty is a prison without walls.