So why do so many people want to keep coming here?
People aren't coming for the scenic canyons, they're coming to get some of that USA money, so they can be on the benefitting side of the skewed exchange rate, instead of the losing side. Many of them exchange part of their salary for their home currency and send it home, in quantities that would be impossible to accrue if you did the same work in that country.
They don't, in fact, at least not anymore:
"We estimate that net migration was between –10,000 and –295,000 in 2025, the first time in at least half a century it has been negative."
https://www.brookings.edu/articles/macroeconomic-implication...
Politicians and folks in the third world are not keen on developing their own countries. Clean water, clean energy, better education, less corruption are not something they are striving for. Politicians there want to make money for generations, while sending their kids to US/UK/EU for studies, while at the same time selling bad policies for public (freebies, this or that scheme just to garner power to make more money off looting via contracts, natural resources).