I disagree entirely "Christians voted in SSM". The law should not cater to one's preference or appeal. It should be about law.
Gays can get married. In every state. You try to get a marriage license in Missouri and they won't ask you if you're gay. Gay men have full legal rights to get married to women. Lesbians have full legal rights to get married to men. Equal rights.
But they complain because that doesn't appeal to them, and so they are in the process of rewriting laws based on preference and not law.
It must be added that gay men cannot marry men in Missouri. However, a straight man also cannot marry a man. So again, we have equal rights already. Any further attempt to procure "rights" is just elevating what appeals to the level of what is right.