The response to the response
Yea I did think the Facebook group seemed a little stupid when I first saw it.
But it also bears mentioning that, as someone with my own beliefs which I forged from the pit with my own bare hands, I've noticed over the years (having been in dead centre of a deeply Anglican community all my life) that to promote Christianity is okay but to promote atheism (or agnosticism, or whatever the heck these people really are promoting) is not. Apparently.
I wouldn't say this in response to the specific group you mention, as it does indeed seem that they are mindless morons…. but on the other hand, I rarely see any material suggesting that the Christian way may not be The way which isn't immediately slandered. Usually it's banned. I can't imagine what the SU would say to the installation of a Non-Christian Society which sought to explore the arguments against.
I've noticed that sort of thing a lot around the world. Arguments 'for' are ok whereas arguments 'against' are not? Is lack of faith not a belief in itself? Does it not demand the same respect?
These are the effects of living in a predominantly (traditionally, at least) Christian country, led (traditionally) by a Christian monarchy. Not that that's a "bad" thing per se, just that the bias is most certainly to grant those with Faith more respect and privilege than those without.
Take, for example, the veils issue about which I've written before. I respect those whose beliefs require them to cover their faces, I really do. But why should everyone else have to have their profiles stored on some government computer just because they choose not to share that belief? How is that fair?
If the government wants to say "ok, there are some people out there who by religion cannot unmask for an ID photo, so we'll have to think of another way to do this" then great… but making exceptions based on certain conditions is grossly unfair to people who may be very good people but who simply have different beliefs about life. That's religious discrimination too, you know.
Bootnote
And that wasn't even anything (not much, anyway) to do with my actual arguments 'against', with which I could write a short novel. This is simply my concern at the extent to which the world uses the term 'discrimination' against specific groups of people, thus committing the very sin that it seeks to avoid in its stead.