Sure it could be a genetic mutation, or something along those lines but should that person be destined to Hell for being born with that mutation in their DNA? (I'm not saying it is a genetic mutation but, but something happens in the womb during development to lead to this.) Also, use a little common sense...why would a person decide to be gay, make life more difficult on themselves, and hide it from everyone?
It's a choice and not genetic. But bring that topic to the poliboard or OT.
I'm a Christian and know homosexuality is wrong as is infidelity among other things, and I wouldn't care if I had a gay teammate. Hell, I've had gay coworkers and got along with most because they did a good job and didn't advertise their lifestyle.
Christians are as "flawed" as anybody and should work with anybody w/o a problem.