Truth is I view Gay as a super-set (a form) of Incest
Funny, one gay dream is of science giving them a way to generically procreate..
If there is ever is a way to artificially create a child from the genetic material from two males or two females
I fear the genetic problems will be far worst then what you see in “traditional” inbreeding
The Science of Male Pregnancy
http://www.malepregnancy.com/science/