In and of itself no. However importing people from a crime ridden country will likely increase crime in the community in which they settle. Crime went up when the Vietnam boat people came to town and crime went up when the Somali people moved in.

ILLEGAL Immigration is out of control, you can thanks the fookin nutters from the left for this

The native Americans were wiped out by the European immigrants, so, I'd say yes.

Fuck no

Only if governments and societies don't support integration between natives and immigrants. Immigration is a normal thing, since the beginning of the very existence of humans.

I highly doubt this. The greatest criminals already reside here.