Those interested in the institution of the family and LGBT rights should read this excellent book by Steve Horwitz called “Hayek’s Modern Family”. Horwitz shows that the institution of the family is a product of cultural evolution. With this basic insight, he shows that BOTH conservatives as well as liberals miss something in their analysis.
Conservatives see the “traditional family” as under attack by liberal norms, but don’t realise that this model of the family isn’t as traditional as they suggest. The family and institution of marriage has changed over time, and this means that they are simply romanticising one slice of time.
Liberals on the other hand, don’t realise that the diversity of family forms that they embrace, actually are a result of changing economic conditions that preceded them. It was actually capitalism and the wealth that “freed the family from a concern with material survival and have opened the space for it as the site of our deepest nonmaterial aspirations.”