If you are voting NO in proposition 8 in CA, how can you say you are a Christian?

I don't understand how people argue the fact that matrimony is between 2 people that love each other. God was who invented matrimony, Adan and Eva, everyone that is religious knows that. All through the bible he talks about him not supporting sodomy, and he even burn cities because of this. I don't need to say this, everyone can read it if they just open the bible. Our society is becoming more immoral, and its in the eyes of everyone. I'm happily married with my husband , and we have a family together, a happy family, its physically fine to have babies. I don't understand how s fight for this with the government and all, if really they already took a decision in their life. I know, that civil unions give them same rights already, so, why do they want to call it matrimony also? I honestly think if you really really believe in God, you know is wrong. And education, if a law pes, if uals can get married legally , also a teacher is protected to talk about it, so , beware the consequences.