Leftist extremists and belief in innateness

I wonder whether leftist extreme positions are borne out of their belief that many human traits are innate or overwhelmingly determined by the genetics. In that case, the group in power and dominant in commerce, science and technology is always the enemy as any kind of nastiness from genetically weaklings would matter little in the long run. The noblemen from the dominant group basically perpetuate the privilege for their group but conservatives from weaker groups always blindly refuse to accept any kind of magnanimity and thus negate that privilege.