but I think we should recognize it was a ghastly mistake.
Yes and no and as has been pointed out, it needs to be placed in the context of the Allied strategic bombing campaign, too. Putting it coldly, logically and bluntly, the entire strategic bombing campaign was purposeful in its intent and succeeded in reducing Germany's capacity to continue waging war, which was the aim of the Allied command.
we did less to them than they did to the Jews, the Poles, the Ukrainians...
Yeah, but that's no justification for further atrocities. Stating that one side is bad, then committing the same or worse doesn't offer a moral nor physical high ground. It lowers one to the level of and makes one the same as the very people one is criticising.
Nonsense, the Germans knew that deprived of fish and chips the British would have surrendered in a week
We all know that the bombing of Wimbledon Common during the Blitz was a deliberate attempt to deny children the world over of the pleasure of the Wombles...