Earlier quoted context omitted.
Its also helpful to remind folk about why someone would hold this position. The largest reason US got to where it was at least in the world economy stage was because of the visa program. It was the country everyone wanted to move to, because you can apply your skills, make money, start a business, with very little restriction comparatively, buy a house, and live your dream life. The more people wanna work, the more o…
Countries are not merely economic zones..! While I don't even agree with you (skilled immigrants are very different from unskilled), even if I did, anti immigration sentiment is largely about culture. I would prefer to live in my own culture than to be slightly richer in someone else's culture.
Presuming to have any real agency over the evolution of human culture also seems misguided. Culture is like a river, in that "no man ever steps into the same one twice". It's constantly changing in unpredictable ways, from generation to generation or even within generations, with or without immigration. That goes for the cultures of immigrants also.