I used to believe free labor markets between countries was a good idea until I realized that it also comes with a free social welfare "market". Nobody wants to

I used to believe free labor markets between countries was a good idea until I realized that it also comes with a free social welfare "market". Nobody wants to let people in their country starve to death in the streets, so they're going to financially support whatever immigrants come in, and if it's really free entry, that's going to be cripplingly expensive eventually because the world's unemployable will go to wherever the most generous welfare is. Another problem is cultural replacement which could replace the open country with a closed one that's perhaps worse than it started off as once enough similarly-minded immigrants live there to determine the outcome of elections. They're not the idealists who started the open boarders thing, they're just normal self-interested people so eventually they'll want to keep what they've got for themselves and stop letting people they don't like in. Bye-bye to all the progressive ideas of tolerating gays and multiculturalism too.