'god believers' is of course the most respectful way to refer to us.
Meh; I get 'heathen', 'unbeliever' etc. 'God believer' isn't so bad
We could also call you "the delusional" if you'd find that more acceptable.
I wouldn't, and to be honest I don't find it particularly funny.
'god believer', on the other hand, actually is pretty funny as a phrase. I'm not so much offended as I am tickled pink.
you should be grateful that your not called a total wacko believing in something with no evidence and defying physics.