I agree with you Warbler because people are entitled to be able to do what they want and be happy (as long as it isn't at someone's expense). Not to mention the end of the population crisis!
-BUT-
If you think about it, everything about gay marriage seems wrong... For instance, biologically we are meant to mate with the opposite sex and have offspring. All mammals do this....except us.
Eventually the word "natural" won't mean a damn thing and that would be kind of ...bad.