Sometimes you just gotta do what you gotta do. Oppressors don't need a second chance; if they needed it, they'd already realize their wrongdoing and stop oppressing. But almost no oppressors do this.

That being said, I'm sure us leftists are more than capable of spotting decent people, even if landlords and giving them another chance through reeducation. If they still continue their nonsense after that, well, sorry but they need to be culled.

Why? To keep a counter-revolutionary force/movement from arousing.

Also, you behave as if liberal democracies don't do this shit either. Take a look at the amount of assassinations conducted by Usonian goons because people dared to talk against it. I'm talking people like Edward Snowden and Julian Assange here.

Every country does this shit. Even your "comrades" will do this too. Especially to fascists.

As much as I also believe in rehabilatory justice over punitive ones; ultimately there'll always be people so convinced in their own delusional, foolish and harmful beliefs that the only option left at that point is to cull them out. Fascists and Nazis for one.

That being said, what "genocide" are we talking about here? Because usually it means to kill a lot of people of a given race/ethnicity; and if I recall, no AES countries have done this. Especially not the PRC.