You have to realize that this is a safe space for leftists to get away from shitholes like Reddit and Twitter. I don't want to assume bad faith, but ironically, I think you are overlooking a key material concern, and that is the concerns of the victims.
An extreme, unyielding brutality has been enacted upon the non-white, non-male, non-heterosexual, non-cisgender, non-able bodied, non-neurotypical population, and so, it is only fair that people can, on appropriate occasions, glibly call for the death of some of the worst people on Earth.
Worst, not by their inherent badness, but by their actions - support for blatant imperialist institutions, cosigning or even engaging in oppression against the marginalized and alienated, and overall just aligning themselves more with bourgeoisie or petite bourgeoisie interests rather than proletarian ones.
When the time comes, will there be mass murder? I'd say, probably. In the earliest days of the revolution, when there is chaos and disorder while the revolutionary apparatus tries to assert it's authority, there will likely be mobs of people enacting a people's justice. But when order is restored? I doubt there will be many executions. There will be executions, certainty, but I doubt that your average red neck trucker who says "I love Q" on Facebook is being executed by a revolutionary council.
When people call for the death of the oppressor on here, it is a sigh of the oppressed. Sort of like religion. It's not the "right" way to handle things, sure, but to condemn it is not the correct solution. Like religion, this is a genuine response to capitalism - ineffectual, but originating from the alienated and marginalized.
It is the job of a principled communist / anarchist / whatever title you give to yourself to redirect "Incorrect" or "counterproductive" forms of response to capitalism into more correct and revolutionary forms. By wholesale dismissing it, you act like an antitheist, which sure, it can be correct in some situations, but a complete unilateral and context-unaware anti-theism can often be counter-productive.