Idk what kind of bubble your girlfriend lives in but the Communist movement in Africa as a whole is objectively socially conservative compared to the West. Most Communist parties still hold the line that lgbt identity is degeneracy born out of capitalist alienation. I think they're wrong because scientific understanding of these issues points to that theory being a false assumption. I'm not going to tell them to go fuck themselves because of that though. Their struggle is still deserving of my support and collaboration.