First of all, we stop importing low skill workers from all over the world that keeps wages artificially low to begin with.
Good point.
We don't literally have food and wealth littering every field, every street. Nor do we have 5 million empty homes owned by no one, just waiting for someone to squat in them.
In short: we can't take in the whole world and give them an American standard of living. Sorry, it doesn't work that way. Everyone else needs to thrive where they're planted.
We can't provide jobs, money, food, wealth, or housing for the whole world. God made a whole big world for humanity -- not just the United States of America.
I know white men make the best (wealthiest, technologically advanced, highest standard of living, "high trust") countries and societies, but it's not fair for the whole world to flood into their countries. Men have no right to a country they weren't born in -- to a society they had no part in designing or building.