Intellectualism culture and intersectionality

‘Intellectualism culture’ is social theory that describes the interactions of smart people between each other and society. One of its maxims is that correctness is more important than consensus. Then it dawned on me, if in-group posturing is endemic to intellectualism, how did Cultural Marxism, which involves professors (presumably high-IQ people), stay ideologically cohesive instead of succumbing to internecine conflict? Although intellectuals reject low-information discourse, the ideology itself (Marxism) is low-information due to intersectionality, in which as many ‘disadvantaged/oppressed’ groups as possible (non-whites, non-Christians, women, gays, etc.) are subsumed by this shared struggle and affinity, and this also explain why the far-left are so afflicted by groupthink and conformity. This intersectionality keeps the ranks of the intellectual-left cohesive. Marxism, as well as all variants of welfare/social democracy, are predicated on demos and inclusion, whereas rationalism and libertarianism (both right-wing and left-wing variants) are not and tend to be more more skeptical of majoritarianism.

The ‘right’ may also have it’s own version of intersectionality (whites, Christians, males), which is why the ‘mainstream right’ platform, ideologically, for decades has been so consistent and cohesive, in order to be inclusive. However, unlike the far-left, there is more acrimony among right-wing intellectuals because right-wing ideology is more intellectually diverse and smarter than left-wing ideology.