Homosexuality is a valid choice, not a sin. Sex is only a sin when those involved abuse people in some way. Love, the golden rule; those are the commandments. Not outdated rules in the history/mythology book of a non-Christian people that committed horrible acts of genocide, and sometimes continue to do so and refuse to make peace with their neighbors.
Well said but I don't think you'll make a dent. Appealing to them to actually do what Jesus said, and told them to do, usually results in a very nasty backlash. Their priorities aren't really based on the Jesus of the gospels.