This isn't a question of whose 'wrong' is right or even whose 'wrong' is a little more right. It is a question of 'is it wrong at all?' And it is. It just isn't possible to argue that Hitler effected a positive (or even net neutral) change on the world - hence he is worthy of no admiration, regardless of what nation it comes from.
That's basically what it comes down to - 'Is X praiseworthy?' If X is not, then ultimately it doesn't matter a bit where the praise comes from. To say otherwise is to be an apologist for evil men and evil actions (as being evil makes an X not worthy of praise.)