Marriage came from God, not man, so He has the right to define it. I don't understand why gays and atheists are making such a fuss over something created by God when they don't even believe in God.
Seems to me that a lot of ' religionists ', so to speak, are the ones fussing over what is Not their business to enforce.
God forces No one to forcefully establish His marital standard as the Law of any Land.
In other words, No religion is authorized by God to dictate to ' Caesar ' as to what standard ' Caesar ' chooses.
' Caesar ' stands in a relative position to God's absolute position. So, it is ' Caesar ' who answers to God.
Anyone wanting to be Christian, regardless of secular law, abides by God's marital standards - Genesis 2:24; Matthew 19:5-6