Except LGBT is a natural part of human existence (and nature - homosexuality is observed almost everywhere in nature) and unsafe sexual practices (remedied with simple education) cause an unnecessary amount of negative societal issues.  Actually go meet gay people and ask them what it's like to grow up not learning about their sexuality growing up.  Personally aren't gay but have met enough decent gay people to know that homosexuality isn't the giant boogeyman religion makes it out to be.