Whilst she has the saem right as anyone to defend themselves against aggression, aside from a question of proportional response (She was prepared to commit planetary genocide of ALL humans without a second thought)
In "Dream's End," yes. It's not like she goes around all the time trying to wipe out humanity.
She kills without qualm for whatever end suits her on a given day. Are you suggesting that she should be given a pass because she thinks it's a good idea to do so?
No, I was just under the impression that you were trying to argue Mystique's reasons were selfish, which is is why I pointed out how that wasn't the case.