>>213515771
I don't think it would be that catastrophic. There would obviously be some violence, mostly caused by the inmigrants that would refuse to leave, but most of those would cause violence due to other reasons anyways
I think there are two options: you build up the necessary government infrastructure to slowly process each case for every citizen that lives in the country and decide which ones should be deported according to some guidelines, or you go for the quick route and force everyone of particular ethnic backgrounds out of the country and then maybe let back in some of them depending on their profession and contribution to the country. I think both options would be valid and pretty ethical if handled correctly