America is 50 different countries in one. There are really two whine different Americas. Several of the states are world class nations unto themselves. It’s the 3rd most populous nation in the world and the richest. It invites a lot of immigration to fend off declining birth rates and doesn’t have a cultural taboo about it like Japan.

It lacks a lot of modern supports for its very lowest classes. New immigrants cannot expect to get baseline healthcare, food assistance, or housing. And it has a generous helping of religious nuttery which brings about scattered laws against gays, a generalized attack on women (though nothing like a lot of the developing nations are still stuck in).

That’s the long and short of it. If you want to go into business and have a relatively free hand, it’s still one of the best places to be. If you have nothing and are looking for a compassionate nation that will keep you from dying of poverty, keep looking.