Personally I would absolutely not want to be a poor person in the US. High crime, police violence, abusive work conditions, random shooters, health care bankruptcy, Fentanyl being pushed by medical professionals, zero Covid protections - it's a dystopian horror show.
This may surprise you, but there are locations around the world with much lower GDP and much happier people.
A poor person in the US will show up to work sick because they know their boss can let them go. Their colleagues might then get sick.
While I'm not sure how common it is, I've seen US news articles lauding co-workers for donating sick days to a colleague with a life threatening illness. While they're obviously doing a good thing, the necessity of the act honestly comes across as barbaric.
Yes, there are many countries where being poor is even worse. But among developed economies (so about a quarter of all countries), it is hard to come up with a worse place for being poor than the U.S.
There's no comparison. It's hugely, vastly better in the States. The only other places that have large backwater areas that can compete are maybe Canada and Australia. This is due to investment by rich people in rental real estate and businesses such as Walmart, Costco, Amazon, etc.
When a family like the Waltons have a net worth in the 100's of $Bn's, this money isn't kept in gold bars in a safe. It's actively deployed in a variety of businesses. So the poor don't get a cut of the 100's of $Bn's, but they do benefit from the investment. And in very equal countries, the opposite is true. Everybody's OK, but there aren't really any systems that stand out as being amazing.