Why is Faith/Belief a Moral Issue?

[abaris]

Who's we?
The words of the holy books are God.  To judge them is to judge Him.

We? Most of the members of this board. Most of the people who don't follow christianity, who don't believe in HIM. HE doesn't exist for us. You don't have to remind me that you are a believer. Just don't make the mistake to project your believes on others.

Yet if this "Iron Age desert morality" is "the moral consensus of the particular society we're living in," then you would accept it as moral, right?
stats 2014
stats 2011
stats 2001

So why should I be interested in US statistics? I'm not American and things look very different in most parts of Europe. I'm aware that the US is about the only Western country where religion still plays as large a role. I'm glad to live in a society where it doesn't.