I think there's some people I hate so much that I'd be able to watch them bleed out in front of me.
Who are these people?
I guess that they are people who had hurt me one way or the other
You shouldn't hold such a heated grudge over people who have wronged you. The best thing to do is to move on if there isn't any legal action you can do.
That's easy to say when you're not the person that's experienced it.
I understand where you're coming from. But holding this grudge is not going to help you mentally. Wanting to have harm to them will not help you.