So you're saying that procreation is a necessary goal of marriage and the traditional notions of marriage justify discrimination against same-sex marriages?

I don't agree.

Gender roles in opposite-sex marriages have changed dramatically over the last few decades. All marriages are now unions of equals. Are you saying that equality should be restricted to straight couples only?

The 14th Admendment guarantees rights to equal protection and due process of law. Prop 8 violates those rights.