BackFire
Blood. It's nature's lube
Well, I wasn't even comparing the two, really. It's just that if you make gay marriage legal, there's naturally going to be opposition, support, and ANOTHER group that will want some kind of equal rights appeasement. There's always going to be a "minority".
Yes, however not every minority is harmless and thus deserves "equal rights". I'm sure at some point we'll hear something about NAMBLA wanting to stretch marriage into their reach sot hey can marry children. This would never happen because it's a harmful lifestyle. Homosexual lifestyle is not immoral or harmful in any way, thus it is one lifestyle that deserves equal rights.
Nobody. It would morally handicap the sanctity of marriage because it defies the very definition of the state of the practice. To be blunt, homosexual marriage isn't what was ever intended. It would be a "socially evolved" appeasement, but not one that everyone should be forced to honor after it being one way for so long.
That's a common misconception when discussing this topic. No one would be FORCED to recognize or marry them if it went against their particular religion or whatever. All it would do is allow them to get married by any of the number of religions that would choose to do so. Such as Budhists.
Also, laws do need to change from time to time, as society changes laws and standards also change. If nothing ever changed then black people would not have the same rights as white people, and women wouldn't be able to vote.
Perhaps homosexual marriage wasn't intended when the idea of marriage was concieved, however, they probably didn't want inter-racial marriages either at one point. I'm sure they didn't expect marriage to be used as a way to get money from someone, as it is now. Or as a prize on a crappy TV show. All of these things happen, regaurdless of the fact that these most obviously weren't intended when marriage was created. So just because something may have not been intended when the idea was created doesn't mean it should never be allowed. Logically speaking, both of these things I mentioned are far more harmfull to the sanctity of marriage then allowing two people of the same sex who love eachother dearly to be united in one of the most meaningful ways two people can be united.