Condemn gay marriage, or just gay rape?

Of course, as we're all well aware, marriage is not a requisite to "multiply and fill the earth". Just how many marriages are a result of a pregnancy? And how many bastards are there (using the original definition)? Marriage is not required to increase human population. It really is nothing more than a form of social, legal, and political control. And you can still get those diseases within marriages. For christ's sake, you don't even have to kiss to spread oral herpes. Just drink out of the same cup with someone who has a cold sore. Then your partner catches it from you (in the marriage, no less). Marriage does not give you immunity from STDs.

Correct me if I'm wrong, but you're the one who said that one purpose of marriage is to "multiply and fill the earth", right? In fact, it seems as if that's your main point. Only sex within marriage is allowed, extra-marital sex being sinful. If one is to not sin, one can only have sex within marriage, meaning that marriage is the only way to "multiply and fill the earth".My point, then, is that if this can be done outside of marriage, marriage must have another purpose, right? Otherwise it is useless.No strawman there. My next two questions were essentially rhetoricals, meant to get the point across that reproduction happens without marriage. Not comments on the state of society (and personally, I don't think out-of-wedlock pregnancies and bastards are a minus on society, but then, that's technically what one of my cousins is). Tax revenue? If they want marriage, I see no reason why they can't have it. Now you're catching on. Before your claim was a little vague, as if marriage was an immunization program.