Pips said:
I wouldn't do it. Believe it or not, Hitler was not the worst person who could have assumed power. Under his leadership, the Nazis were terribly disorganised, and spent a great deal of their energy on in-fighting. If Hitler was dead/had never been born, the power vacuum would be filled by someone else, and they would possibly be even worse than he was. (A level history FTW!)
That's not even the main issue, Germany in itself wasn't that much of a threat. Unless that power vacuum was filled by someone more diplomatically apt who could've gotten more support on their side, namely the Russkies or the Americans, it wouldn't have mattered much, Germany had too much going against it.
The bigger issue is the fact that we learned a LOT of things in WW2. Any would-be power freak nowadays can easily be 'identified' as a Hitler-wannabe and taken down before he can do too much harm.
More importantly, we also identified that "nukes are bad, mkay?" and it's something that we identified at quite a low cost, current nuclear power considered (we learned it with the first, weakest weapons). You think 80/120k casualties is a lot? The strongest nuclear weapon at the moment has about 23 times the fireball size of the Fat Man. Imagine using that crap on a big, densely populated city. And that's disregarding the fact that nuclear weapon development slowed down massively after the Cold War and that if we didn't have the experience, we would probably have an even stronger arsenal by now.
Also, due to the fact America used it's nuclear weaponry at the point where it was the only country to have it, there was no nuclear war, which would have been pretty much inevitable in a situation where both powers had a nuclear arsenal and weren't already familiar with their potential.
So yeah, as awful as WW2 was, we could have it a lot worse.