There seems to be no rhyme or reason to who's accepting and who isn't, at least as far as I can tell. Some of the people who are the most accepting are those I least expected to be, whereas the few people who have been judgemental and difficult are the sort who pride themselves on being broad-minded and accepting.
As for the OP, I think I'd have to wonder if I wanted to work for some halfwit like his manager at all. Although it might seem unfair, if he's here to stay I'd make a move elsewhere: I've stuck it out in not very pleasant jobs much longer than I should have in the past and I don't recommend it.
My mom says she doesn't have anything against gay people at all. Yet I have 2 gay friends and I invited one over, we were just hanging out. Then she becomes so irrational and thinks that I'm going to turn gay just because I'm associating myself with homosixuals. She said he was never allowed over again. When I asked why she said "because he could try to talk you into something you don't want to do."
She said all the hateful things a homophobe would say, I was astonished. It made me realize that people are not what they say they are. I never should have told her that my friend was homosixual because everything was fine when she had no idea that he was.
She basically said I should hang out with "normal" people and that my friends are weird. That is pure hate talking.