Well...yes, because they are at a very low level of development and consciousness. They are stuck with a 9-year-old child's view of sexuality - that boys or girls are "icky" - and they haven't matured enough to embrace the Other. With gay men it's immaturity and fearfulness, for lesbians it is more often a result of sexual abuse in childhood.
Gays and lesbians are wonderful propagandists for their own cause - happy to tell you how much more evolved they are then everyone else around them. But the observable reality is that they are lesser beings than heterosexuals, and they regress further each time a law is passed treating them as children and granting them special indemnification from the realities of life that everyone else has to bear...
Your description is perfect. Thanks for the words of wisdom and a very long chuckle.