[burfog]

The native Americans had numerous little nations. Those nations were mostly destroyed by immigration. There was lots of fighting and death, and a hostile cultural change, and property seizure. Individual immigrants could be brilliant and hard-working and friendly, but then they voted for leaders who did terrible things to the native Americans.

This is not something to repeat.

[Splognosticus]

There's a pretty substantial difference between immigration and conquest. The former in no way requires the latter.

[burfog]

In these cases, no. There is no substantial difference. It's the same situation, with people of an incompatible culture showing up in large numbers and then expecting to control society.

It never goes well for the population already there.