it's true, but focusing on that was a very specifically austrian/german socialism criticism, and quite notable in that after the war asking any questions about teh history became a heresy in almost all mainstream culture

and in concert with pointing out that the nazis killed a lot of other people than jews (they hated gypsies and asians and gays and artists) the regime of Stalin also was pretty heavy going against jews, the Pogroms of Ukraine and Poland and those regions heavily focused on exterminating jews, and as you point out about the anarchist branch, they really aren't socialists, but rose out of similar circumstances, all across the world...

Eric Blair aka George Orwell originally was inducted into socialism but fell into contact with spanish anarchists who opened his eyes to some things and gave us the famous books (animal farm and nineteen eighty four) that are both allegories of what socialism actually is.

it's the thing that irritates me the most about "right wing" people is that they, and all the left wing of the "counterculture" types don't even realise that none of this is about races, or political stripes, it's just about covering up the existence of the ruling class, and creating an illusion that what happens was the choice of the people

it may well be there is numerous genetic lines, of which some are labeled "jewish" but it goes back way further than merely 2500 years ago in the middle east... in actual fact it goes back over 12000 years, but anyway