Even the nicest, most decent superheroes are cold blooded murderers. The nice ones just do it less than the psychopaths and make their kills with a much more cheery soundtrack. Take Captain America. Dude is all-American good guy as it gets and he’s racked up quite a kill count in his Marvel movies. How many? 14,089! Not so good anymore, right?
At least some of the kills were not human? And if they were human they were very, very evil?