people who cancel others based on their X activity.
You are saying it as if it is a bad thing.
I would not hesitate to “cancel” (distance from my life) anyone that behaves in a way that crosses my boundaries of acceptable behaviour.
This boundary might sit in different places for different people, but we all have a limit of criminal and/or morally reprehensible behaviour that we are willing to tolerate.
Anyone claiming otherwise is a liar.