Homosexuality a Pathogen ?

[Rotobeast]

(05-19-2016, 09:20 PM)BmorePat87 Wrote: Wait... we're deciding that there were no gay humans when we were hunters/gatherers? lol?

Also, I've seen theories on the evolutionary benefit of the gene. 
http://www.huffingtonpost.com/2012/06/12/why-are-there-gay-men_n_1590501.html

This one theory seems to suggest an X chromosome gene that increases fertility in females. So while the males may not procreate much or at all, it is passed down to sisters as well. 

I also thought that seemed to be a really odd statement.
How could we really know ?
Do we even have evidence that pair bonding was even that strong ?