My answer has changed since we first had this discussion.

@ ogershok:
As soon as discussions call for a stance based on moral values, religious people will logically use their religion to help them come to a stance. Whether this is seen as 'forcing others' is a matter of opinion. Atheists do it too. Only they use another source for moral guidance. That is one area where there is needless friction.

That doesn't make it different from you make a moral decision, and if that decision interferes with your life, the fact that it was born out of religion instead of another moral compass does not make it wrong.

To make an extreme analogy: when slavery was abolished, the people voting for the abolishment used their moral compass (religious or otherwise) to interfere with the people who made a living out of it. That doesn't make it wrong per se.