Your stance is that, if Hitlers political rivals stood for anything “wrong” by your moral code, whatever that is, that voters were in the right to not vote against literally Hitler?

This was what brought down the Hindenburg government, in fact. His performance in the Presidency was notoriously abysmal and his country suffered enormously under his tenure. In fact, one could very easily argue that Hindenburg's failures created the Nazi Party, as disaffected voters fled the traditional political sphere for the edges of the ideological map - to the Nazis, the Communists, and the Friekorps radicals..

It was, after all, Hindenburg himself who appointed Hitler to the Chancellorship, because he considered Hitler someone he could compromise with.

This is a shockingly similar position to the current Biden/Schumer Congress, which consistently attempts to negotiate with "moderates" in the Republican Party even to this day.

That’s taking “two wrongs don’t make a right” to extreme absolutes.

Looking at the trajectory the conservative wing of the Democratic Party has us on, and comparing it to the Weimer Republic, reveals some terrifying parallels.

This isn't "two wrongs make a right" nearly so much as it is "the marginal less or two evils is still unconscionable".