The aim of the article is to provide an analysis of the recent phenomenon of trans-phobia on the spectrum of left-wing politics. Transphobic attitudes are not just a reflection of an individual’s oppressive practices, but arise from certain theoretical concepts present within Marxist theory. The authors begin by summarizing the gender-based conflicts that arise within capitalism and lead to gender oppression. In the second part of the article, the authors explain how the left, which draws from Marxist tradition, has failed to recognize these conflicts.