A marriage should end when either of the parties want it to end, or else it's no longer consensual. I don't believe in forcing people to stay married. But divorce still needs to mean splitting the finances so nobody is left destitute and without skills for employment. Alimony was invented for a reason. Before it existed, divorce was immensely cruel.
(Contrast: https://www.theguardian.com/lifeandstyle/2017/mar/24/tini-ow... )