Communism may be regarded as a Christian heresy. Both say that all humans and human groups are, and ought to be, inherently equal. Ancestry, tribe, and race mean nothing -- only whether you are "washed in the blood" of Christ, or proletarian revolution (which is itself a kind of fulfilment of the prophecy of "the last shall be first"), or not. Jews are central to both systems. Of course, Communism dispenses with the overtly supernatural element, but its "equality" precepts are equally hallucinatory and devoid of evidence.