Thats...not what happened. Please look at how "Entnazifizierung" actually worked and also rethink if you're actually antifascist or just deeply authoritarian if that's your preferred solution.

The whole point of fascism is that almost anyone could become one under the wrong circumstances.

Creating a terror state won't help you. You're not erasing ideologies by erasing people, unless you want to lean completely into censorship and mass murder on a bigger scale. At that point, you'd have to fight leftists as well, since a lot wouldn't want a state to hold the power to do all that.

That's quite different from Luigi killing a CEO or some random person punching a Nazi.