Boyfriends parents refuse to accept me, or even meet me

I've been dating him for a couple years now, in love. Totally completely and pathetically in love with this boy. Our relationship is perfection. We want the same things in life, and we make each other ridiculously happy. I want nothing other than to spend my life with him.

One problem. He is muslim, raised by muslim parents, who don't accept the relationship. They think that being with me will cause him to stray from his religion and culture. I've been trying to learn as much as I can, because the last thing I want to do is take him away from who he is. But that's not good enough, they won't even consider the relationship. They won't even meet me, and see how I am, and how much I love their son. It breaks my heart, I don't want him to have to choose between me or them. I want happiness for all of us, and I just want a chance to win them over.