The list of extremely high IQ historical figures who have been branded as “antisemitic” is not short. It’s a meme among classical music composers in particular. Seems like everyone who tried to shape history with his brilliance inevitably started noticing some things.

Amen!

The problem is that it isn't even remotely true. Remember that the "Weimar Government" was run by the Democratic Socialist Party of Germany. The SDP.

Freedom of Speech didn't exist in Germany at the time anyway. The SDP took power in a revolution, while the Communists were engaged in insurrection and terrorism (while a Russian invasion was coming), and they were under attack by the Friecorps (which wasn't even regular German military). Political protest and speech was heavily regulated under the military government during the war, and then heavily regulated after to prevent the Communists from killing the Democratic Socialists. It just didn't help that SDP's government was unable to prevent political violence from either the Communists or the NSDAP. Hell, not only was the Beer Hall Putsch an illegal protest, but it was also considered a riot and an insurrection (it was an insurrection to be sure). The SDP knew how revolutions worked, didn't want further revolutions, and really didn't want the Communists rolling the literal red carpet out for the Red Army (which they tried from 1918-1921)

To be honest the two reasons the government couldn't just completely censor the NSDAP is because they held Leftist / Socialist policy positions, because they are a Socialist party; and because they offered themselves up as a centrist party (aka: Third Positionism).

Yes, the big difference is that they wanted to abolish the constitution of Germany at time. But again: So did every Socialist party, and a lot of the the members of the SDP thought the constitution needed amendments at least. That opinion makes sense, because everyone knew the constitution was fucking retarded (it was made by the SDP). Everyone wanted to abolish the constitution except SDP leadership because it was explicitly designed so that only they could benefit. Major constitutional changes would have been the consensus position. Which direction differed greatly.

When it comes to the holocaust itself: The Nazis never publicly and explicitly stated they wanted a mass murders. This was because of the weariness of the German public against constant revolutions, terrorism, and political violence; followed up with the mass condemnation of Kristallnacht (even by Nazis who didn't get the order). It became apparent that the German people themselves were not actually interested in mass political violence and mass murder. The Nazis literally came to power because they claimed that it would come to a stop, and now the SA were running around setting shit on fire after they had seized power (Socialists always lie). The Nazis used dehumanizing rhetoric that is normal among Socialists and their desire to kill the bourgeoise group. I've shown repeated clips from "The Eternal Jew" which are less nasty than some of the shit coming out from academia (See: Feminists: Men, Black National Socialists: Whites, Queer Revolutionaries: Heterosexuals, Transgender Revolutionaries: Cis-genders, Palestinians: Jews, Trade Unionists: Management). The German people themselves were not even largely in support of political violence against jews, it was just policy of the NSDAP, and so the decision was made that if jews were going to be mass executed, it had to be kept quiet.

So, even with bad rhetoric, there was no use "Free Speech" that caused the holocaust. More than anything, it was State Speech that justified the Holocaust to a disinterested public.