[ansel12]

If I had my way, there would be the government ‘civil union’ with various tax rules and ‘marriage’ as a religious sacrament. Marriage should be up to the religion. Once could be married without civil union (say plural marriage for Fundamentalist Mormons or Muslims). One could be civilly united without marriage (atheists, agnostics, or unions that don’t meet the religious requirements of marriage for any sect you may name).

Why do libertarians think that people are interested in their internal, weird, fantasies?

You want to end marriage period, people can use the word any way that they want is what you just described.

There is no movement to end legal marriage (recognized by govt.) and there won't be and can't be, marriage is always defined by a common authority, be it Rome, Greece, the Apache tribal leaders, Sharia law, the Roman Catholic church when they had total power, there is always legal marriage.

As far as your fantasy, that already exists, you can call anything marriage in your church or club or cult, that has ALWAYS EXISTED and still does, it just doesn't get recognized by the rest of society and in law when it applies, for instance in the military.

The founding fathers, the Continental Congress made law regarding legal marriage at the federal level and never stopped enforcing those laws.

[donmeaker]

My recollection is that marriage is considered a religious sacrament.

You seem to not know that.