Read the studies. Sorry I can't cite any one in particular, but they're out there.
my guess is that you have an image of gay couples that is distorted at best.
Yeah, ONE of us does. My guess is it ain't me.
I know a couple of women who want to raise a family
And for every one of the couples CLAIMING that, I can show you 1,000 leather hustlers or bath-house frequenters or papa bears or twinks or the thousand sub-breeds of that species who indulge a promiscuity that would leave a sybarite aghast.
anecdotal evidence at best, but not pure conjecture...
All you've offered this whole thread is anecdotal evidence. "I know a guy who ..." "A couple of my friends are gay and ..." You're no expert, your self-glorification notwithstanding.