Japan shows how much better and efficient a country can be when it's mostly homogenous, everything's cleaner, better maintained, people care more about whatever it is they're doing than the US.
Meanwhile the US is turning into one great big broken down ghetto or if it's not that, it's suburban sprawl that is often lifeless, Japan takes more care into building architecture that looks pleasing to the eye, modern America meanwhile uses this weird corporate brutalist, minimalist style that seems designed to make you feel despair, gone is the "lovably tacky" styles you used to see in the 90s and 00s (look up the Planet Hollywood restaurant in Orlando Florida and what it used to be and what they turned it into for a perfect example of what I'm talking about)
Our media reflects this, anime still has a genuine feeling of wanting to entertain you, almost all of American media now is dedicated to making you swallow Woke ideology and despair, America has turned into a country that seems to on purpose want to demoralize you and make you despair, Japan, for all it's faults, doesn't suffer that same sort of mentality.
And if you're not happy with the current state of things, increasingly that's labeled "fascism" and anime offers a very stark contrast to the American cultural zeitgeist.
Also TLDR it's just aesthetics, anime is drawn to be pleasing to the eye, American culture celebrates the ugly and off putting, if you're not content with that, anime can't help but offer a pleasing alternative.
This is a pretty on point an observation and explains why I always use anime girl pfps.