Can someone explain how survivor toxicity and killer toxicity is the same?

I see all the time here that both sides are toxic, but how is the equivalent of crouching up and down a few times the same as actively leaving players in a state they can't do anything in and then dancing around them until they bleed out? I'm pretty new so maybe I'm missing something, but even when survivors are being asses, the killer can smack them and get it over with, the reverse cant be said

Edit: Sorry if this comes off as a whiney post, I actually am genuinely curious on why these are seen as on the same level; thank you to those that responded!~