Orwell wrote:
I know enough atheist homophobes and racists that I don't think those negative qualities can be attributed to the effect of religion. People are people, regardless of what they believe or profess to believe.
Not entirely attributable to the effect of religion, no, but if a person thinks that morality is whatever the pope says it is, or whatever arbitrary taboos the bible happens to dictate, rather than something that we arrive at by using our powers of reason to discover what courses of action will increase human wellbeing, & reduce suffering - then don't you think that way of thinking really facilitates people believing all sorts of crazy disgusting things, such as that homophobia is justified?
Any atheists I've met who were racist or homophobic seemed to very clearly be unpleasant & florid neurotics, who merely couched their unreasonable dislikes in terms of pseudo-science.
With religion you can be a basicly decent & generally sane individual & still feel yourself obliged to go along with all that crazy stuff. A sincere moderate Catholic with liberal live-&-let-live impulses is on the losing side of the religious argument - his spiritual leaders are lined up with the crazies & the bigots.
People are people, but what they believe affects their ability to be good people.