It's a foundational part of the sickness in people like Trump that anything bad is by definition somebody else's fault, and clearly his cultists just keep lapping up his lies no matter how insane and transparent.
Conservatives lack the ability to empathize abstractly. Due to their extreme emphasis on being self-centered, they are deficient in understanding that what happens to another can happen to them.
Once something bad happens to them, they are able to start to see the threads that bind them to others and society. But it’s only once it’s been made personal that there’s a chance of this recognition occurring.
So “us good, them bad” style of mob thinking is more common in conservatives only because they systematically do not ask themselves “are we actually different from them?”