It isn’t hard to untangle this. Let’s say you’re arguing with a Christian who says that homosexual marriage should be outlawed. How do you argue with this when he claims something as obtuse as, “homosexual actions are sinful and should be outlawed, and I believe this based on my faith”?
Simple. Realize that he’s not just mixing religion with State: he’s mixing specifically those ethical aspects of his religion with State. More to the point, he’s mixing “Ethics and State.” This isn’t surprising, as everyone mixes his personal view of ethics when he advocates such and such a law. It’s impossible not to. The Christian who advocates outlawing homosexual marriage, the Muslim who advocates outlawing everything but Islam (I’m being facetious here), and even the atheist who advocates the well-intentioned outlawing of, say, cigarettes, are all doing exactly the same thing: they are mixing Ethics and State.
When someone refers to somebody else “forcing their religion” when they advocate X or Y law or its repeal, they are mistaken. They are forcing their ethics. Whether or not their ethics are a subset of any given religion is immaterial. So, with respect to Christians, all you have to do is ask, “What do your ethics consist of?” You might get any number of answers, but the easiest way to distill the core Christian ethic is as follows: “One should love God more than anything else, and one should also love his neighbor as himself.” From here we find the negative premises: “One should not love anything more than God, and one should not love himself more than his neighbor.” To do what one should not is sin.
So if one claims that we ought to outlaw homosexual marriage because such a thing is sinful, ask him why we should not also outlaw other sinful acts–in fact, any sinful act at all, because, really, God does not distinguish between a visible sin such as an act of homosexual behavior and the private invisibilia of one’s moment of greed. They are both sin. So why the discrepancy? Why outlaw homosexual marriage but not greed?
Here they may claim that “we should outlaw homosexual marriage because it would help promote a stable society,” using the word “stable” in place of “good” in attempt to be…“objective.” However, in order to determine that they should try to promote a “stable” society in the first place, they must look to–aha!–their ethics, which also claim that greed is just as evil as homosexual behavior. If “stable” is “good,” and thus we should seek it, we see from that same source of ethics that greed is just as not good as homosexual behavior, and thus we should avoid it. So if they’re going to have any consistency at all, they must outlaw the entirety of the dark ranks of invisibilia as well: greed, lust, hatred, envy, haughtiness, and on and on. And as their source of ethics, the Bible, does not make any categorical distinction between visible and invisible sin–which would provide a foundation for a two-tiered ethic–we see that any attempt to separate the rules into “those which should see the light of positive law” and “those which shouldn’t” must be a purely arbitrary selection, resting solely on the opinion of the one in question and devoid of any theological merit. Another Christian may assert (however unpopularly) that we should outlaw greed and let the homosexuals do as they may, but he would be saying nothing different in principle from the others.
So what we’ve ended up with is a country where virtually everyone breaks the law virtually every day, an impossible situation where the application of human judgment and punishment are concerned. With everyone pointing the finger at everyone else–in suspicion of an invisibilia violation at the very least–we see a society not at all like the one that is supposed to be defined by love.
What to do? Condemn no one. Love. Let God deal with the impossible mess of virtually everyone breaking his law virtually every day, and seek to force no behavior on anyone else through the means of positive law. Otherwise we greet a slope that cannot but descend into chaos.
I’m a Christian, but some people are just stupid.