I've seen various names pop up, couple more recognizable ones are Andrew Sullivan and Harvey Levin. Maybe they don't have management positions in the gay community (though Sullivan was a supporter of gay marriage before much of the gay community).

Sullivan says:

But look: I come back to what I said at the beginning. Robertson is a character in a reality show. He’s not a spokesman for A&E any more than some soul-sucking social x-ray from the Real Housewives series is a spokeswoman for Bravo. Is he being fired for being out of character? Nah. He’s being fired for staying in character – a character A&E have nurtured and promoted and benefited from. Turning around and demanding a Duck Dynasty star suddenly become the equivalent of a Rachel Maddow guest is preposterous and unfair.

Levin says:

I'm gay and I don't agree with Phil, but he has a right to his believes...it's not hate-based...it's religious...misdirected, but his right