Without diminishing how incredibly unequal/bimodal some areas of America are, I wonder if the second part of this statement is statistically backed up.
When I was poor I frequently interacted with different people waiting for the bus, riding the subway, hanging out outside the mobile home park drinking, etc. Now, borderline-rich, I find it much harder to interact with people. I drive alone in a car, live in a luxury condo complex where no one talks to each other, etc. (Although there's also a pandemic going on so apples-to-oranges)
Stats seem mixed [0]
[0] https://greatergood.berkeley.edu/article/item/are_the_rich_m...