Quote Originally Posted by greenhavoc View Post
Ah, so consensus of how we feel comfortable in ridding the planet of whole groups of people is based on method, then. Okay.
Yes.

If we rid the planet of people who believe the earth is flat by teaching them science this is generally accepted as ok(though not universally eg creationists) But if get rid of them by killing them people usually have issues with it. If you can't see why then I can't really help you here.