Yes. Not sure, tbh, about whether B&B owners should be allowed to refuse a gay couple a double bed - they certainly shouldn't be allowed to refuse them altogether, and I've never suggested otherwise, despite the wilful misunderstanding of some posters - but there should be limited allowance for religious bodies to discriminate against women in the priesthood (or equivalent - minsters, Imams, Rabbis, etc). However, the C of E, as I've said before, has gone much to far in pandering to the misogyny of 'Backward in Bigotry'.
I'm against religious organisations being able to discriminate, but I understand the argument for it. The B&B owners it's a clear-cut no, for me - that's not a religious activity, that's a business. You can argue whether Churches are running as businesses too much, but they are certainly actively conducting religious activity at least part of the time. Once you allow them the right to discriminate you run into all sorts of knock-on problems - is a Catholic school a religious or educational enterprise, and should they be allowed to discriminate against gay teachers, for instance.
A B&B, though, no matter how devoted/fervent/rabidly dogmatic the owners is not an expression of their religion, and so doesn't get the exemption. The depth of somebody's belief is not the measure, it's the nature of their activity - if their belief system prevents them from behaving in a manner that's acceptable to broader society that's their issue in exactly the same way that a murderous psychopath, a misogynistic rapist or a racist thug needs to moderate their internal beliefs in order to accommodate the social contract we all work under.
O.