Why do so many gay people have anonymous and promiscuous frequently?

Being gay 'should not' only about having with men. And why it is such a majority conditions right now ? because the society conditions it to be happened. It takes a wholly more difficult to tie knot 'officially' between male than if you are man and woman. There is lack of law now that will permit gay couple to adopt child (in most of countries around the world) and so many other thing. And why gay christians virgins should wait to have until get marriage when the marriage itsef is not recognized infront of his religion ?? That kind of paradox question isn'it ?