"The Chinese Robber Fallacy is where you use a generic problem to attack a specific person or group, even though other groups have the problem just as much (or even more so)."
This is something I remember wanting to write about a while ago, and I'm glad someone else has already done it and given it a snappy name.
"The Chinese Robber Fallacy" by Alyssa Vance in The Rationalist Conspiracy: https://rationalconspiracy.com/2015/03/08/the-chinese-robber-fallacy/