This is a very odd argument in the USA context. People showed self determination by emigrating from poverty and lack of economic opportunity in Europe – they didn't stay "…doing the hard work to build viable economies."

Now the US people are denying other people the same opportunities their not-to-distant grandparents had. I guess it's an insiders market.

I find your concept of US "owing" anyone anything strange. Depending on your political opinions you might think that humans "owe" each other equal opportunity.

The leftist motto was “Self determination of Nations”. The US was supposedly corrupt and capitalistic and the people’s of the world should avoid our model.

We’ve let more people in than any other country (including other countries that started out as colonies, like Argentina, Brazil, Mexico) We have a right to regulate who we think will contribute and be a good citizen.

We now want to exercise our self determination as a nation like everyone else does.

You managed to toss out more strawmen while not addressing the content of what you're replying to.

Can you answer why it's OK for earlier generations of (now) Americans to leave their origins in search of a better life, but modern immigrants should stay and fix these issues instead?

Your views are fascinating.

It seems you’re arguing for “consistency”. That doesn’t make sense. In that view if only colonialists had been allowed the US policy would be consistent because it never let immigrants in (noting that as a colonizer you’d be a subject of the crown which in name ruled whatever lands they had dominion over).

They said, a nation with self determination can decide what it wants according to its laws. It’s that simple.

Open borders isn't a leftist idea. It's literally the opposite of control over private interactions.

US gets huge financial benefits from being the world hegemon. Then there's the Northern Triangle that US messed up and Americans pretend that they have nothing to do with it.

I really don’t care who is for it. Migration has to be regulated, else we will return to the mean. Every other state exercises that right but when the US does it then it’s «bad» and «selfish», etc.

We could do it the Canadian or Australian way. Remember all those Americans who thought they could simply slip across the Canadian border and be good? Even they don’t just let anyone in.

I’ll believe the rhetoric when countries where it makes sense to federate federate (Caribbean, South America, Caucasus, etc).

Regulations on migration are bad, all bad. So maybe you don't put words in my mouth.

So if you want to regulate who I have in my home, then maybe I should regulate who your barber is.... and I would choose Sweeney Todd.

Argentina is not really a good example for your argument as it is probably the most "open borders" country in the world.