I think this may be partially about perception. I have been to the US over ten times. The first time I went to the US as a teenager, I was surprised how poor the US looks outside rich neighborhoods. Crumbling infrastructure, 80 year olds still working at supermarkets because they couldn't afford a living, many overweight people, most of the food sold in supermarkets is over-processed junk, and it is a car hellhole (can't walk or cycle to many places). I have also travelled most of Europe and with a few exceptions, European cities/villages look greener, more walkable, the people look healthier, people retire timely, etc.

There is also really weird segregation, like neighborhoods where only African-American people live. We once walked into a large restaurant and people looked at us in shock. There were only black people in the restaurant and by the shock on their faces, a family of white people walking in must have been rare occurrence. They were super kind, but it also was very weird.