What an ignorant, superstitious fool you are. The Bible and the Quran were written by ignorant, superstitious men who lived in ignorant, superstitious times. Today, both books are wielded by ignorant, superstitious haters to hurt innocent, loving members of human minorities. To declare that gay people choose our sexual attractions (as you declare) reveals you to be ignorant and superstitious beyond the ordinary.
You could learn about us in one way by simply asking us to tell you our stories. You could learn about us in another way by examining the past century of scientific research that demonstrates the matter objectively with overwhelming certainty
One way you can't discover anything about us is by reading those two religious books you cited - books filled with horrifying stories of a cruel, jealous, sadistic god. But then, I think I've already pointed out what an ignorant, superstitious fool you are.