RE: Should same sex marriage be legalized in every state?

People using biology to say marriage is between man and women are wrong. Marriage is a literal human-made concept, how does biology come into play? What does mother nature say about marriage? Nothing. Because one, any marriage is not natural, straight or gay. Animals don’t marry. That doesn’t make it wrong however. Marriage equality should not even need to be argued. If a man and woman can marry then two of the same gender should be able to.