Yeah, if you use the broadest possible definition, then pretty much everyone would be gone. Even if you restrict it to only adults who are aware of what they are doing and still choose to be an asshole fairly often, you would be removing a huge part of the population. Sounds like a pretty bad move to me.

That sort of thing might come close to nuking the entire species back to the stone age. Then again, that would be good for the environment in the long run. It could take like 20 000 years for the human species to fully recover from that one button press. I think I'm beginning to see some benefits... nah. Still a bad idea.