You accept that Hitler was right unto himself but you reject his actions as being "right".
I don't believe in the concept of right and wrong but in the sense you mean....yes.
But if he had won the war, the prevailing attitude would be that he was right.
So? The prevailing attitude does not determine what is right or wrong.
In the end, the west was just as guilty for refusing the ship of fools to land on their soil and sent them back to Hitler to be carted of to the concentration camps. A condemnation of Hitler would then entail a condemnation of the Allies.
Yes, if you wanted to ignore reason behind action and only looked at the final result. That is like saying there is no difference between Robert Latimer's actions and OJ Simpson' actions since both resulted in a dead person. That is true if you ignore motivation or intent.