When you're living in your own fenced community surrounded by walls and trees it's easy to ignore whatever is going on outside the property line.

They hang out here because America is currently one of/the best wealth engines on the planet and they can afford to avoid the shit parts. Once either of those stop they'll go somewhere else that's nicer

3

https://theonion.com/america-defeats-america/

The wealthy have an out. Peter Thiel, for example. He has a private compound in New Zealand he can bug out to if it gets too hot where he is right now.

They've appropriated the Christian religion. The government has allowed them to literally poison us and the environment with no repercussions for who knows how long, in the name of Capitalism, so they victimize the public for profit. They cut school funding every chance they get, intentionally creating less educated/more pliable people. Most can't afford to move out of the country, and the general public is mostly dependent on them for their food supply, which they fill with sugar and chemicals that cause all kinds of metabolic diseases. They're farming us. We're their captives.

Power and prestige. In the US the billionaire class is revered as the shining beacon. Everyone wants to be them and history tells them they can be. You just have to get lucky. Like winning the lottery.