This abstract raises an interesting question for me.
What if we found the biological origin of homosexuality....
Would it be ethical to develop a treatment in utero in order to correct the problem?
Of course, the first step would be to develop a prenatal test.
Which might lead to large numbers of potentially homosexual boys being aborted.
Would the prochoice community respect the right of women to rid the world of these babies?
Just an interesting thought.
PS: I don't put a lot of stock in any explanation of homosexuality that only focuses on biology.