We need to change this ourselves.

Bullshit. They are reveling in the death of someone they didn’t happen to like

there's a narrow ridge between morbid jokes one thinks or makes in private and sharing them with the whole world by posting them online. People who go public with these thoughts are a kind of people with serious problems with themselves and for society imho especially because apparently in their minds disagreeing with someone does justify that sort of active violence against someone. That meme with the tranny in concentration camp kind of reflects it as self defense against lunatics.