The reason conservative Christians are fighting this fight today is because it’s a firewall. The real danger, of course, is that Christian pastors and preachers will eventually be coerced into performing same-sex marriages. (Note: It is entirely possible for someone to believe gay marriage is fine, and to still oppose forcing people who hold strong religious convictions to participate — but I suspect that is where we are heading.)
Think of it this way. If you were a congregant in a church, wouldn’t you expect the pastor to marry you? Why should you be treated different?
Any pastor — if he or she wants to maintain the church’s tax status, that is — had better grapple with this now.
Whether the analogy is fair, or not, refusing to officiate a gay wedding can just as easily be called “denying service.” And it will predictably also be compared to the bad old days of Jim Crow — where racist Christians opposed interracial marriage (until the courts struck down state laws prohibiting biracial marriage).
Gay rights and religious liberty are on a collision course.