If they're forced to do it at the threat of loss of cash they'll probably dust off their tried-and-true method of not making it a DF offense, but saying that they've disassociated themselves by their actions. The end result is the same, the R/F won't know the difference and they'll be able to say that they don't DF people for being gay.
I don't think they really care too much about getting new recruits - they're happy to be the "few" that are finding the "narrow road." If they capitulate on the gay thing, I think they're likely to lose a few of the bigots that they've created since the acceptance of gays has been probably the #1 crime that they've been accusing christendom of for the last few years. They'd much rather reinforce their being the only true religion in the eyes of the R/F and if they're the last ones holding to the bible's bigoted view then that "where else will we go" question becomes just that bit more difficult.