I would note that this statement should read, "because their lifestyle conflict with the alledged teachings of God." Small potatoes, but a distinct difference. It is not my fault that most religions of the world condemn homosexually and were likely founded by bigotted homophobes.
As far as chastity goes, I don't believe for a second that "god" gives a fiddler's damn about it one way or the other. I can only wonder why people are so hung up on the subject. Do hetersexuals have a closer connection to their god? Not likely.
I do believe the Bible and the Book of Mormon to be the word of god, and it speaks very harshly against breaking the law of chastity, so much in fact that it is better that you should be chaste than to condemn yourself to hell.
And that the "natual man is an enemy to god" that we are to rise above ourselves and become as saints if we wish to be called his children. which includes the law of Chastity, including but not limited to, pronography, masturbation, homosexuality, fornication, sex before being legally and lawfully wedded.
These sins to us are almost on par with the shedding of innocent blood.
But lets agree to disagree.