Not ranting. Telling the truth. The bombing was in multiple waves, and those waves were designed to kill civilians. The biggest give away being following incendiary runs with high explosive runs an hour later to kill the people trying to put out the fires. That is targeting non-combatants.
It goes further than that.
RAF mechanics had put a deviation (of different degrees) into the Lancasters' bomb sights. During the raid, Mosquito bombers kept a fire burning in Dresden's football stadium by periodically dropping out of the sky and letting go with incendiary bombs. Different groups of planes flew over the city from various angles but the bombardiers all focused on that one central magnesium fire in the city center; the pre-planned "flaw" ensured that as long as the bombardiers targeted that central point, different groups of planes would bomb different NEIGHBORHOODS.
I think it helps a lot of people sleep at night if they insist to themselves that the railyards were the primary target, but they weren't; this raid targeted the city itself.