Born that way

I was reading When a Dog Says "Moo"’ by Chuck Colson and it really bothers me when someone uses the logic that just because someone was born a certain way makes it ok for them to act that way. i.e. If someone is "born" gay, then it is inherently ok for them to practice homosexual activities. If there is a gene that predisposes someone to murder, rape, or lying that doesn't make it ok to do those things, is just means we should help them overcome those things. Here is a news flash: All humans were born with a sin nature! (excepting of course Jesus Christ!)