Well, to explain it further... on this one issue, I am with the conservatives in the US.
Its not like homosexuality is something new and is a recent discovery. Its been present throughout ages. But its always been an abberation and not the norm. And thankfully so, because (excluding the recent medical advances) if, we suppose that most people on Earth are gays then the human population will drastically reduce cz of no procreation.
The institution of marriage has been a constant factor throughout history of mankind. And the concept of marriage has always been hetrosexual. Divorces are as much a part of manking as marriage. In the history of mankind, there have been divorces for as long as there have been marriages, so the argument that existence of divorces means that hetrosexual marriage has failed as an institution, defies common sense. It does not. It is part and parcel of the whole thing. The most successful regimes and civilizations in the world, throughout our history, never tinkered with the institution of marriage. It has always remained hetrosexual.
It is, therefore, unfortunate, that in recent times homosexuals have gained so much political power in the western society that they are re-defining the institution of marriage. I believe it is a sad state of affairs. They want equal rights? What equal rights? I have no problem if they have rights to social security and financial equality with their spouses. Thats fine. But, in my view, to redefine marriage as between two men or two women is a low point in our progress as a society.
In recent times, it has happened in a few places in Europe. It happened in a fewprovinces in Canada. And now its happening in some parts of the US too. These societies are supposedly the leaders in our present-day civilization. They are tinkering with a such a basic human institution which has stood the test of time, that its almost sad.
And if we claim that this is all a civil rights issues. Nothing more and nothing less. Then it becomes a slipperly slope argument. Where a consenting adult can chose what form of marriage he or she wants, and if someone doesn't allow that then it impairs his or her civil liberties and equal protection, then who is to stop one adult man and two adult women to get married? Or two adult men to marry one adult woman? Or three adult men? Or four adult women and two adult men? What about incestual marriages? Then its all a matter of civil rights. Each of them has a right to call their relationship as "marriage". When you take out morality, then this is a very slipperly slope, and you can actually end up hitting the final nail on the coffin of this most basic institution of mankind.
I think Bush is going to using it merely as an election issue. I think the constitutional amendment will probably not go through (HR, yes; Senate, not quite there yet). He will get 38 states to stamp it (they already did a few years ago); but its a long and drawn out process - and the way the opponents spin it, its not likely to succeed. But still the ramifications of letting this go on unchecked are quite alarming.