Not 'quite happy' about it at all. No, Dresden was a terrible atack, although not without reasons for doing it.
But you see, and we're just going around in circles, that is a separate issue to whether or not I think the Nazis were the bad guys when they invaded Poland.
I don't relish or enjoy any deaths in war, but I don't have a problem identifying the Nazis as the bad guys in WW2 and Putin as the bad guy for invading Ukraine and murdering innocent people by levelling Cities.
He is the aggressor.
The Nazis were the aggressors and Dresden would never have happened had they not tried to take over Europe.
I find it strange that you struggle to call the Nazis the bad guys.