What part of socialist ideology stipulates the horrible things? It was somewhat inherent in Nazi ideology that there was a superior group and inferior groups.

What part of socialist ideology stipulates the horrible things? It was somewhat inherent in Nazi ideology that there was a superior group and inferior groups. Even this would have resulted in a atrocity, but moreso was their will to export their ideology by empire building. I don't see the same sort of failures stemming from socialism. Expansionism certainly leads to strife, but the ideology itself doesn't enforce an us and them. Except insofar as there are adherents and opponents of the ideology itself.