This has lead to debate about whether being gay is a choice, or is genetically etc. determined. Implied in this debate is the assumption taht it is OK to be gay if it is genetic, but it is not OK if it is a free will choice.
I think this debate is wrong headed and damaging. It shouldn't matter if it is geneitc or not. People should be free to live how they want. What goes on in their bedrooms is not my business, or the pope's or anybody else's. But by discussing a kind of homsexuality that is OK, they are widening the idea that some kind of homsexuality is not acceptable. What if they found a gene that could be tested - what could this lead to? WOuld gay people who don't test positive for the gay gene be loacked up in special mental hospitals, where the are trained and treated until they are straight?
If you aren't gay (and I'm not, but that's not relevant to this post) don't think this doesn't effect you: how our society treats those who are different effects us all - one day they might pick on the differences you have.