Without government involvement in marriage, what would that matter? Anyone can create whatever kind of church they like, and call it whatever they want. This is established under the First Amendment. If someone wants to form a church that conforms to what they personally believe and conduct marriages, how does that affect anyone outside of whatever congregation they may have?
“If someone wants to form a church that conforms to what they personally believe and conduct marriages, how does that affect anyone outside of whatever congregation they may have?”
If the government is not able to control marriage, then any church that advocates the homosexual agenda can and will conduct gay weddings and we will all have gay married couples in our communities.
In the military, federal employment and immigration for example.