This is the reason why our current timeline is really messed up … a bunch of idiots went back, killed a bunch of people to stop someone from getting born, restarted another timeline, killed Haegl which gave rise to Hitler, killed another person, restarted again, killed another person, restarted again, kill another person and now we are here.

Look just be grateful the time traveler killed Hitler in his bunker before things got even worse.