Mass immigration has always happened over the millennia. Sometimes peoples are replaced, sometimes they end up mostly merged after a few generations.
I don't think it's something that can be prevented or encouraged, it's too many people trying to improve their lives to control it. Especially in a time when we're making most of the tropics uninhabitable with climate change.
I don't think it's something that can be prevented or encouraged, it's too many people trying to improve their lives to control it. Especially in a time when we're making most of the tropics uninhabitable with climate change.