HBO Comedy Special: Lewis Black - Red, White & Screwed

Amnesty Vendor

This is a quote from a recent HBO special that I saw.
I did not get the following joke.
Please explain.

Homosexuality is a threat to the family.
Are you kidding me? How?
No one ever explains it. How?
It's not like there's a Jehovah's Witnesses of gaydom.
"Hi, we're here, we're queer, we're here, we're queer."
"I brought swatches! I brought swatches!"
blondie

I would think it means that there aren't gay people going door to door trying to convert people to homosexuality destroying families like JWs do.
proplog2

Louis Black is my favorite comedian right now. Wish I had HBO. I guess it will be on video soon.