QD: you want proof, watch the documentary, "science of sex appeal". They didn't set out to find anything, rather they wanted to see what is found as "attractive" and what areas of the brain are active when someone is attracted to another person.

Blank: show us evidence that "marriage" is not a religious institution. Then, show me a religion that's holy writings support it.

I find it ironic that this is a "progressive" issue yet homosexuality does not contribute to progress of reproduction and the continuance of the human race. Also, why is all the research done on gay men? What about lesbians, bis, and transsexuals?