Yeah but being bad and doing a good thing from time to time doesn’t make you good. Your thought experiment doesn’t provide any value because no one is saying everything the bad groups do is always and forever bad. It’s more like the severity of badness outweighs any good they are doing when it comes to the perception of them.

I’m sure Hitler gave his friends very nice and thoughtful presents. At the same time he was ordering a genocide. Are those presents then bad? Not on the surface. Is he redeemable because of that? No.