I assume there are racists in every community. But certain Republican politicians and media personalities are constantly making Covid's link to China into a salient issue. For some of those people, Democrat or Republican, this will be enough to drive them over the edge from implicit racism to overt racism. And a small subset of those people will end up using violence. And you'd have to be deluded to think that the president (Trump) saying something and having that be reported on widely is going to be ignored by non-Republicans.