How to take a video down with copyright.

Yeah! You should write report in YT

Pro tip: Karma doesn't exist. Its existence is as real as santa claus' or the smurfs'... If you don't expect blue little thingies to pop out of the ground you should just consider that if the platform you're working on allows negative SEO there's no foul in practicing what everybody else would be doing onto you anyway...

Therefore, go write a bot or have someone do that for you if this strategy is what you really wanna do...