Of upstart Jews and Bolshevism a Jewish conspiracy
Being used at the time to justify a series of horrific pogroms on the part of the Whites. (Figes estimates up to 150,000 dead. ) Russell's mild anti-semitic prejudices were as nothing to the virulence of all datasets White feeling. Like Russell, the Whites were inclined to conclude that because Jews were prominent in the Bolshevik Party, they must be prevalent. Unlike Russell they seemed to think that because most Bolsheviks were Jews, most Jews were Bolsheviks (or at least Bolshevik sympathisers) and should therefore be treated accordingly. If Russell knew about this—and I presume he did, though not perhaps the extent of the carnage—then he may have been reluctant to say anything that could be construed as excusing such crimes.

Russell's subsiduary purpose in writing THE PRACTICE AND
THEORY OF BOLSHEVISM was to end Allied aid to the Whites. (He thought the Bolshevik excesses were partly due to the Civil War and that if the Civil War ended so would some of the excesses. Moreover, he thought the Civil War had to be ended to save Russia from economic catastrophe.) Parroting White propaganda by talking of an aristocracy of Americanized Jews would not have served this purpose.
Rae West seems to think that because Russell was outspoken, that he spoke his mind on every subject. (Or almost every subject) This is just a mistake. As I explained in a previous missive, Russell kept some of his opinions to himself or to a narrow circle of friends. In 1922 he was briefly a convert to what is now known as the error theory.
Nobody besides his Apostolic brethren knew
About this till Alan Ryan published the paper in 1987. Everyone familiar wth the CPBR will be aware that Russell's book reviews, which usually end with some words praise no matter how faint, are often at odds with his virulent marginalia. Russell could be circumspect on occasion and was sometimes willing to moderate or even 'suppress' his opinions. His private thoughts were not always for public consumption. [Note: Russell in his Autobiography wrote: 'To say anything against Bolshevism was, of course, to play into the hands of reaction, and most of my friends took the view that one ought not to say what one thought about Russia unless what one thought was favourable. I had, however, been impervious to similar arguments from patriots during the War, and it seemed to me that in the long run no good purpose would be served by holding one's tongue.