EDIT: I misread the punchline of the joke. Ignore this.
That's amusing, but at the same time it is horrifically anti-semitic. Especially given what the Jewish people went through in the years leading up the the Russian Revolution (One toddler was torn apart by a fascist mob, in another town a number of months later Jewish people were forced into a church and then the church and people burned alive).
The punch line is that the anti-Semitic bigotry had the accidental effect of benefiting the Jews, who didn't have to stand in the pointless line as long.
Today, the joke would be accompanied with the "congratulations, you played yourself" meme.
Right. If anything, it's the minorities and the common people who are the long suffering heroes in the story. It's the party insiders who are portrayed as the anti-semitic and comically dim villains.
Do you think that fascism was created by the Nazis? Just because the manifesto was not written, does not mean that there were people without fascist beliefs, even if they couldn't call themselves fascists yet.