Will there become two distinct definitions of marriage in America?

I think in 20 years (another generation), no one will care.

I believe this is a generational issue that we are on the cusp of.

Eventually it will just be about the venue, or where people got married. I got married in a Lutheran Church. Neither me nor my wife are Lutheran, however her grandmother is, so that's where we got married, and our marriage license says "religious ceremony" on it. We could have just as easily done a civil ceremony. I have a feeling family, friends, and the free market will sort this out.

Marriage is a legal contract, a wedding is a ceremony, either religious poo us or civil. The legal definition of marriage won't change, but the concept of marriage will definitely change. People confuse the two..I see that as being stumbling block for the eventual acceptance of this new reality.

Hopefully it will end with the state out of the marriage business. Except enforcing contracts between consenting adults, regardless of the parties to the contract.