there isn't a "kill all the ____" that will fix the problems of the world, because,
1. you probably can't.
2. if you did, more of them would probably come into existence, or
3. other people would come to fit the same social position.
4. There isn't a group of Fundamentally Bad Evil People that Cause All The Problems, because
5. Harm isn't caused by a type of person. everyone causes harm and an effective system of addressing harm has to contend with that.
6. you will end up expanding the definition of ____ to include whoever else you want to kill anyway. which will suck.
7. Destruction without building will leave nothing behind. New harms will arise. Old harms will continue. Because there is nothing to replace them. There is nothing Helpful being done. a better world isn't created by just getting rid of all the bad stuff and calling it a day. you have to actually make something that meets peoples needs.
8. structures of power and harm sometimes maintain themselves even if no one intends them to or purposefully wants them to.
9. systems of power will end up finding a scapegoat. they will convince you that some marginalized group are the real ____ and you should focus on them. and in your zeal and blood thirst you, or at least some of your allies, will fall for it. And you will commit atrocities.
10. The world that is created can only come from the world that is.
And look, whatever group you are thinking of -- yes I mean them too. Pedophiles, rapists, murderers, sociopaths, nazis, billionaires, cops, you name it. Harm and oppression is far too complicated to ever be solved with Finding The Right Group To Kill.
And there are lots of really great arguments to be made about why eliminationist rhetoric is ethically bad, or historically questionable, etc. I am open to that being added on and talked about too.
But my point is that It Will Not Accomplish Your Desired Results. You Will Have Committed Atrocities and You Will Have Failed At Achieving Your Initial Goal.