"Lots of gay people don’t even get married." Lots of straight people don't get married either, does that mean our right to marry should be stolen from us? No, anyone should be able to marry whomver they love.
Love SHOULD NOT have boundaries like race, gender, religion, or nationality, or anything else. I believe the most meaningful part of life is finding your soulmate and being happy with them, and nothing should get in the way of that goal.
I want to get married some day, and not because of religion (I am agnostic) or legalities, but because of the spiritual union, of forever being bound to my soul mate, my true love. (Although I am agnostic, I still have varied spiritual beliefs and views, I don't need a particular religion to define my spirituality) Think of things this way,. what if the world was almost all gay, and straight people were the minority, and you loved a woman deeply and wanted to marry her, but because it was deemed "unconventional" by a religion, how would you feel if that got between you and your true love? It's sick, and it's wrong to do that to someone, really sick.