[Adam the Fish]

I think you're correct, Lizzie, but the Abrahamic religions tend to be the most prevalent (other than, in the UK, Humanism / Atheism, but they don't really count as a 'religion') and the most vocal in their oppositions of equality, which right now is manifesting primarily in homophobia. The followers of these religions aren't necessarily bad people, they've just been deceived into thinking that they're helping by marginalising and oppressing people.