Comment: Stalin did that because it deflected the blame from capitalism

"Anti-Semitism is of advantage to the exploiters as a lightning conductor that deflects the blows aimed by the working people at capitalism."

Because if the idea spread it could replace capitalism as the peoples perceived enemy. Replacing the communist states ideological enemy could shatter the communist system or force it to alter into something it's adherents despised...

I mean if it were Anti-Semetic communism would pretty much be Nazism and you could praise Stalin then right John?