If i were to choose having Refugees rape my daughter and the liberal elite shoveling in immigrants for slave labor i'd yes. Immigration has been around for a long time, but for the first time ever we are taking in people who aren't of the Judea-Christian faith and don't have the same values as us at all, choosing to behead their criminals and stone their women.
Yes. The population of whites is declining and too many immigrants not assimilated. The crime rate of refugees in other countries is rising rapidly. BLMs, feminists, political correctness and liberalism has proved that their ideologies are not grounded but degeneration and destruction.
No. It validates the hatred that nationals have toward foreigners, allowing them to feel that they can express their own anger at other nationals who immigrated or whose parents immigrated. This can lead to more hate based crimes. In the end, creating more nativist policies leads to dividing the nation between the two groups.
The part of what makes America great is that everyone is accepted and we work together to solve the world's issues, nativism is just a broader word for racism and hating other cultures because they do not do what we like to do.