Should gay people be able to marry?

I support a homosexual. A homosexual person has the difference the distinction of sex between the brain and the body. So I agree with falling in love of homosexual. But... I am opposed to marry to gay couple. Because, I think the marriage is the existance to leave offspring. A homosexual cannot have the baby who has a personal gene. They cannot leave offspring. But I think it is possible to love each other even if not marrying. People give a homosexual an odd look but I think should not it. I support them.

Do you know the song of "Beautiful" by Christina Aguilera? I like her and I especially like "Beautiful". She is singing about the sympathy with the socially weak in this song. I was shocked to lyrics to this song and the music video. I think they are very strong people when I listen this song.

(This is not music video)

Beautiful by CHRISTINA AGUILERA

(Don't look at me)

Everyday is so wonderful,
then suddenly, it's hard to breathe
Now and then I get insecure, from all the pain
I'm so ashamed

I am beautiful no matter what they say
Words can't bring me down
I am beautiful in every single way
Yes words can't bring me down
So don't you bring me down today

To all your friends you're delirious
So consumed in all your doom
Trying hard to fill the emptiness, the pieces gone,
Left the puzzle undone, is that the way it is

You are beautiful no matter what they say
Words can't bring you down
Cause you are beautiful in every single way
Yes words can't bring you down
So don't you bring me down today

No matter what we do,
No matter what we say,
We're the song inside the tune,
full of beautiful mistakes

And everywhere we go,
the sun will always shine
And tomorrow we might awake on the other side

'Cause we are beautiful no matter what they say
Yes words won't bring us down, no
We are beautiful in every single way
Yes words can't bring us down
So don't you bring me down today