There's no nicer way to say this but...

[kılıç_mehmet]

Of course it was hypothetical but your missing the point, Gay people have every right to marry as well and the definition of marriage has changed over many 1000's of years.

No, the definition did not change. It's just like the left and right in politics.
For example, examine the leftist politics. The economical doctrines change, but the ideals behind it do not.
Similarly, marriage can go from a polygamic nature to a monogamic nature, or vice versa. But the core, still remains the same. It's between a man and a woman.

There is no definition of change to speak of, if the definition of marriage was depicted as being between a man and a woman on Egyptian hieroglyphs, or Hurrian cuneiform scripts, as it is now, today, in every part of the world.

What if that was the only land you could be in?

What if, what if. Really, such arguments are pointless, as such a society is only thinkable if and only if gays live in it.

I am trying to put you in a position to see the other side and how gay people see it.

Well, there is no other side to speak of. Gays are not able to marry due to the various reasons I've already listed. There are times when you just have to say no. Okay, society has allowed homosexuality to be accepted to a degree within society. They are not hunted down by the law no more, in most countries. And now they ask for further "rights".
These so-called rights infringe the future of society by hampering with it's fundamentals. I don't think that there is anything to say at all.

And what is so wrong about letting gay people marry?
I tell you what if letting Gay people marry globally distorys the world as we know it (as in bring mass hysteria and Armageddon type destruction on a global scale) I will give you £1m (or $1,612,000 at the current exchange rate)or the equivalent amount.

I don't need your money. Besides, I've already said all what I could say on this subject. Besides, there will be no gay people marrying globally type of thing. At least not here on the lands of Turan.