Here's my take on the issue...The owner has every right to have the religious view he has, it's a fundamental corner stone of our country, that being said, any one who doesn't like it can simply choose not to buy a sandwich from him.
I hate to admit it, but I kind of agree with old salt on this, it's not tolerance they want(because they themselves are wholly intolerant of any opposing view), it's attention and preferential treatment. If it was tolerance, they wouldn't be staging this gay kissing nonsense...All that says is, "look at me, look at me".