As far as society goes, I'm not for imposing my religion on anybody. However, if we didn't make laws based on what history teaches us, then every generation we'd have to throw out the entire body of Anglo-American law and start fresh. Obviously, we can't do that.
Anyone who studies history knows that the teachings of the Bible are confirmed over and over and over again. Homosexuality was, is, and always will be dangerous to the social order. If homosexuality is so harmless, why do almost all successful civilizations supress it? Similarly, abortion and infanticide are credited by many scholars as having lead to the collapse of both Greece and Rome; and today we're seeing the same thing in the West again with women aborting their children by the millions, which IMHO is the prime cause of mass illegal immigration here and in Europe.
The Bible tells us homosexuality is depraved, sinful behavior; history tells us that it is dangerous to society.
Cheers...HV