Individualism is not the work of capitalism and liberalism, which treat most persons as disindividuated members of worker, consumer, voter and other political/economic groups. While _mindless_ individualism is an oxymoron, individualism (which requires some kind of mind so that the individual can differentiate itself from the mass) would probably be a good thing; in any case, its large-scale appearance would at least be an interesting change.
I don't know about other leftists, but I have given a lot of thought to political organization and other aspects of praxis. The problem I encounter is not that people are off doing things on their disorganized own; it's that they're not doing anything. They can't even vote individualistically. Lately I've reflected that this may be the result of a large number of our fellow- citizens having sat in front of television sets with their mouths hanging open since around 1950.
Perhaps things are different in Russia.