We just did. There are no right or wrong wars, only morally ambiguous.
It is. Germany was bitter because of lost territories after WW1, it was moral on their side to claim back what was lost.
It is a gross oversimplification of WW2.
And this is exactly the reason of moral ambiguity.
So, allies doing the very same things in Germany in 1945 is a good thing then, because Hitler was evil?
A pinnacle of debating techniques?
So, in short, no, you are wrong; we live in reality, not in Middle Earth.
It is simple to dismiss a point saying that something is "stupid" and not worthy of a "thoughtful response", but it didn't work, sorry. You have yet to give me an example of a "morally clean" war.