Right-wing candidates are making major inroads in governments around the world, especially Europe, based largely on opposition to the immigration of people who are poor/brown/different religion & culture. It's an understandable fear among people who don't want to lose their culture, or sacrifice their standard of living to accommodate the flood of poor, but it's also an exploitive and hypocritical situation for nations that have relied on immigrants for cheap labor pretty much forever. You also have to consider the countries where immigrants are fleeing from, and what the first world nations have done to help alleviate, ignore, or possibly enable the incredibly s#!tty situations they've been living in.
It's pretty easy to rationalize nationalism as something the dominant culture has earned and wants to protect, but it's a stone cold fact that a global rise in nationalism never ends well.
Demonizing the Other never ends well for any party, and that's the difference between addressing crime and immigration stats and policy, and spamming the internet with pictures of young women killed by filthy Hispanics.
A topic better suited for the Republican Disinformation thread is the hugely successful use of "globalism" as the rightwing straw dog for the last 40 years. It's literally insane.