[Sherman Logan]

As Peter Sprigg of the Family Research Council points out, rigorous studies of identical twins have now made it impossible to argue seriously for the theory of genetic determination. If homosexuality were fixed at birth, as the misguided thinking of homosexual activists goes, then if one twin is homosexual, the other should be as well. The "concordance rate" should be 100%.

"Born that way" does not necessarily equate to genetic inheritance.

Increasing evidence indicates that many of the subtle differences between people are created by how the intra-uterine environment expresses the genetic code of the DNA.

IOW, the DNA is the blueprint, but as we all know blueprints can be followed well or poorly by the actual builders. Many if not most birth defects are of this type, and it is likely many other "inborn" differences are too.

Personally I believe some though not all homosexuals are born with a strong tendency in that direction, as a result probably of hormonal fluctuations in the mother at critical points in the formation of the nervous system.

Which would make such tendency a form of birth defect, if you like. Which ought to really piss off the gay rights people.

[Morpheus2009]

IMO, the problem is not the attraction to the same gender but the behavior. The behaviors that some people attracted to the same gender practice are what’s wrong, and also potentially harmful to them as well.

I could believe that perhaps degrees of vulnerability to feeling same-gender attraction could be related to early childhood development, however, keep in mind that attraction is not completely inseparable from the behaviors which we don’t condone.