National politics as full participants, maybe. National politics that can be perceived as self-defence and opposing their "opressors", I wouldn't be so sure. Besides, there is a huge gap between what some rabbis may profess somewhere, let alone that that teaching is open to interpretation what it really means, and real life.
Avoiding pogroms was the only constant motivating factor in the Jewish community of the Russian Empire. Very few Jews were interested in any radical revolution.
There must have been different notions of "radicality". American Jewish neocons are much more radical and agressive than traditional conservatives, for example. But to them, they are just normal and logical. Bolshevik revolution was "avoiding pogroms" and "taking some revenge" for some, I am sure.
History is often portrayed by the majority population in a way that scapegoats minorities for all problems.
It's a two-way street and the same can be said about minorities who often believe they are victims all around. I'd rather take an objective approach, where every side is assigned some blame. Wouldn't you? Or in other approach, either side is blameless and is simply acting in their own interests that may diverge. But that's not what Jewish supremacists have in mind, to them their tribe is beyond reproach, and "anti-semitism" is some universal illness that's guaranteed to exist everywhere just because "Jews are special and misunderstood".
You have yet to explain how the Jews, who were not very numerous in Russia, were able to instigate a communist revolution (according to your theory) while they were not able to instigate one in Ukraine, Belarus, or Poland, where they made up a much larger percentage of the population.
First portion of your question is more technical, whether a minority can affect the course of history in any major way. I already answered that question somewhere. As for the second part, it's a topic of separate discussion. As far as I know, Jewish kommies were active in those countries too, and we had a discussion on how kommies were cheered in Poland in 1939. Also, could local population be more hostile to the movements that were headed by Jews, whose tricks they were up to? Also, Jewish kommies did have some successe in Hungary and Germany.
Have you considered the possibility that most Jews simply were not interested in communism?
It's possible, since most is only more than 50%. And what does "not interested" mean? Does sympathetic with the goals or using it for tribal goals qualify as "interested"?
You can tell how people feel about a government by the way they vote with their feet. There were about 7 million Jews in the Russian Empire in 1917. By 1923, when the Soviet Union sealed the border against further emigration, there were only about 3 million Jews left. Most of the Jews who had lived in the Russian Empire chose not to live in the Soviet Union.
we had a discussion on how kommies were cheered in Poland in 1939.
No, it was not commies who were cheered, it was the Russian Army. And with good reason. Any Jew who got behind Russian lines and managed to stay there was likely to survive the war. 90% of the rest died. In hindsight, they were correct to cheer the Russian Army.