WolfThomas said:
A few people have mentioned the forever war, it's a great book most people should read. In that at one point in human history people are "quickened" in artificial wombs and raised in groups, heterosexuality is seen as a deviancy.
Brave New World carried the same premise, except it was love that was seen as deviance, since birth control was freely available, and casual sex was an easy way to keep the people happy. Incidentally,
Brave New World is a much more likely dystopian future than that of
1984; it's a question of taking away people's freedom but doing it in such a way that they don't even notice because they're so happy about the way things are going, versus a regime that is so oppressive that everyone hates it, but they can't do anything about it, because it's just that powerful. One of these would be facing a revolution quite quickly. In the other, the people would be too apathetic and content to bother.