Most often gay refers to male homosexuals.<quoted text>
Lesbians are gay women.
Over 30 years of research has shown the deteriming variable is the relationship between the parent and child, not the gender of the parent.
Again, the American Sociological Associan rejects the Regnerus study and explains why it is bogus.
Your prejudice still fails to provide a legitimate excuse for denial of equal treatment of the marriages of same sex couples.
Never the less, the studies are about lesbian couples.