DominicCobb said:

Monogamy is not normal sexuality.

That is a completely wrong statement if we look from an individual species perspective. In a few percent of animals monogamy is normal sexuality. It must have been more beneficial than polygamy to some kinds otherwise evolution would not allow it.

DominicCobb said:

Waiting til marriage for sex is not normal sexuality.

That is correct.

DominicCobb said:

You may be making a "scientific" argument but you're basically just repeating the typical homophobic "slippery slope" argument more eloquently.

I wasn't making any argument. I was stating how things are from technical point of view. Homosexually is technically an error in programming since it obstructs the propagation of the species. But nevertheless, homosexuality is completely natural. It can be either attributed to variation of species (i.e. to one of the key elements of evolution) or it can simply be an error in a very complex process.