There were some Jews in the early Soviet Union who harmonized Judaism with scientific socialism, and the folk who run the Minyan have affectionately described communism as ‘Jewish’, though my own familiarity with Jewish scripture, traditions and ancient history is too meager to explain why. Perhaps @[email protected] can elaborate if he feels comfortable doing so, but I do know this:

In their propaganda the stridently secular early Jewish labor leaders used religious imagery to inspire the workers—passages from the Prophets on social justice, references to modern day Pharoahs and to the Israelites’ liberation from Egyptian slavery.

Now, since historically organized religions have frequently worked on behalf of oppressors, I unfortunately cannot blame the Bolsheviki too much for cracking down on them (which undoubtedly resulted in some collateral damage); this is largely why so many religious establishments loathe communism. Even today there are more than a few communists and other socialists who are antitheists, but I think that that is the wrong attitude to have, since religion (including organized religion) does not need to be reactionary. I would much prefer that organised religions be transformed rather than destroyed.

I hope that this response helps you. Perhaps you know a few Catholics who cherish Judaism and would be curious to learn how it is compatible with communism.