But seriously, has any software lost support because of the morals of its developers? Jobs regularly intimidated his employees and denied the existence of his daughter and Linus regularly belittles contributors on the linux mailing list. OSS is full of assholes.
That's an interesting question. Not one easily answered. How do you measure it? Though, there is a difference in an asshole and a bigot. Sociopathy and bigotry are both bad, but entirely different things. Are you aware of a significant project with a bigotted, publicly visible maintainer?
Mark Shuttleworth at Linuxcon. He did apologize for it though. I hope that once the rage dies down, people will try to respectfully communicate with OP's guy. Maybe he's hard-headed in his views, or maybe he'd be more willing to listen and update them when people aren't calling for his head.