Because we are animals.In real life, if we had superpowers, you would get so many homelanders. The Boys basically.
It's kinda sad how humanity has so much evil, give some people a chance with no repercussions? They're committing the most inhuman acts.
Difference is we have the ability to reason, so we can and should rise above those instincts. But there are plenty of ppl who give in. Maybe not to the extent that they murder, but yea….