it will have to accept them accordingly.
Except for one little detail...
A country can survive a war, occupation, terror, executions, fascism, and communism. Even death camps...
It cannot survive the cancer of wrong immigrants. They will worm themselves info the host's DNA, change it, and make the country unrecognizable in a couple of generations.
The fact that they multiply like rats doesn't help, either...while the locals stagnate at 1.4 reproductive rate...and into oblivion...
I would rather be poor than an oppressed majority, as in the UK, where the ruling mob sides with the invading hordes and, thus, invites more of them to come.