Liberal Democrats? I thought he was speaking out at the Cuntish Humanists.
I don't think he was speaking out at anyone specifically. He was talking about himself - that he couldn't square his own conscience with the ethos of the party he was leading.
Sure questioning from journalists (who might or might not be humanists - probably not) brought those issues tot he fore, but they were always there and it is perfectly reasonable for journalists to ask these kind of questions. Indeed they did with Corbyn, probing his conscience on Trident and pushing the button.
Out of interest do you think we'd be having the same discussion if it was clear that a LibDem party leader was racist, or if those views weren't linked to religion. I doubt it, we'd simply accept they weren't fit for the job.