actually the science fails to back up any claim of the homosexuals. There is no homosexual gene. period. That is not bias, that is just science.
They have mapped the human genome. Found the the six or so variants of the breast cancer gene, have found the location of any other number of inherited birth defects. HOWEVER this one sexual behavior has failed to appear in a gene.
Why have the homoadvocates not explained away the prison populations with their "gay gene" mythology? The reason is that the homosexual argument of "born that way" is a political statement in order to drive a political agenda. It has never had ANYTHING to do with science. Homosexuality is just another abnormal fetish.
That is my point, there is no objective proof for either group. Therefore deciding that one group is inborn and another is not is based on self reports by the members of the groups. The choice for believeing either group is based on personal bias.
I happen to think its not nature, but nurture and my view is not objective.