I'm agnostic (so the question doesn't really apply to me), but I don't look down at anyone's religion, spirituality, or faith. It's what helps them get through the day, and who am I to tell them they are wrong?
Only people I look down on are those who put down other's religion and think their view is correct while every other religion is wrong.
I look down on religious freaks that base their life on a literal interpretation of the Bible. That's the worst thing one can do. Those people are just stupid. But I admire those who believe and live their lives without the complete pressure and influence of religion. Thinking with your own mind is important.
Of course I respect them -- I actually respect fully devout people over agnostic people. Conviction of any form gets respect from me; it takes confidence to stand by what you believe in.
There is an end-all point of course (cult status, forcing your close ones to adopt your opinions [like children] and the like) but, up until that point, you do you, I'll do me.
No, I just don't really get why there are so many religious people while there's so much evidence that tells otherwise. But if they want to practice religion, I don't see a reason to look down on them
People who use religion as a reason for hatred like homophobia do not deserve respect though