Defending against accusations of genocide? Yes. Although the phrasing can sound odd because it is largely a fabricated narrative. I think most here would support China's actions as a deradicalization program against religious extremism, especially compared to the US solution in neighboring Afghanistan and Iraq.
Tankie is really just used as an insult against "communists I don't like." It's not like it has any theoretical depth. It has an etymology related to the definition they gave you but that only has so much influence on its use.
Class war is the ongoing state of things. Like infation and rent hikes. If a revoluton broke out, of course it would be authoritarian. And the resulting state would probably take an extremely cautious siege socialism approach if it wanted to survive, so yes it would probably be authoritarian. But choosing to not be authoritarian is really just willfully ceding power to the previous ruling class who are not going to give up their position peacefully, even after a revolution. Think about the media narrative and war hawk stances against Cuba, the DPRK, the PRC. Now imagine that but applied to a newly founded socialist republic.
lmao like actually true though