I sympathize with what you're saying and agree with some of it, but it's a bit idealistic. People's ideologies are molded by how they interact with the world. Ideas do not sprout from nowhere, so I completely disagree that "conservative generations" must be abandoned for younger ones. Unless you get to the roots of what's causing reactionary ideology, the younger generation will just be as conservative. Other than that, I firmly believe both the nuclear family and the gender binary will wither away and be sublated, but there's no swift abolition especially in a pre-revolutionary or mid-revolutionary situation. We're already seeing the beginning of withering away of these things due to the contradictions of capitalism, and they'll be completed as communism is built. Besides radical support for queer issues I'm not sure what the strategy here should be.