Racism in 21st century is a misleading term for social problems. It is barking against the wrong tree.
Some people, because their education level, would accept and believe whatever their info source pour to them. I’m from China. I know how aggressive the “little-pinks” would behave online and in real world.
Unfortunately, for some reason, this population can roughly map to some races. The political industry is using this issue to rake in their own internet. They are preventing this problem to be fixed.