Genetics of Homosexuality vs. Reproductive Rights

[Emu]

Let's suppose for a moment that homosexuality has a definitive genetic cause. That said, I mean that if you have two recessive Gay genes, you are vastly more predisposed to being gay than someone who is heterozygous (i.e., a "carrier") or someone who is homozygous for heterosexuality. (I'm making a lot of genetic assumptions, but this is just hypothetical anyway.)

Now, I'm not certain of it, but I don't believe there are any restrictions on allowing homosexual women to carry and birth biological children. Going along with our supposition, if homosexual women have biological children, they have passed the gay gene(s) on to those children. The same goes for homosexual men who marry women and have families. (Yes, they do exist, and in greater numbers than you're probably aware.)

If it were found that there is a gay gene, how would we as a society deal with that? Is a potential child's sexual orientation important enough to warrant restrictions on the reproductive rights of homosexuals?