@Novichok
Do you really think such stupid comparisons will convince anyone here, least of all in a Polish forum?
Germany invaded Poland, started with terror bombing in Wielum an elsewhere and refused to surrender until Berlin was conquered. There was no alternative to conquest, and it was done for an objective moral cause (stop the murder and enslavement by Nazis). Leaving morale issues aside, it was not feasible for bombing crews to aim specifically for military targets, especially not in cities and in the face of fierce air defence.
Your concern for German civilians is touching, but -leaving aside all prior German crimes - one should not forget that the Nazis were still conducting the Holocaust and other crimes while Dresden and other cities burnt. KZ Bergen-Belsen was only liberated by the Allies months afterwards.
Russia is currently fighting a colonial war with at least genocidal undertones, and is deliberately targeting civilian infrastructure, hoping to inflict as much suffering to the Ukrainians as possible. Russia's war aims are evil and the way it conducts such a war is evil, hence any civilized people will condemn it. If the Allies had stopped their bombing campaign and the Soviets had done the same, the killing within the German areas of controle would have continued. If Putin gave the order to stop the war and withdraw, the killing in Ukraine would cease once all Russian soldiers left.