Realistically they don't want to ban divorce. They probably do want to ban no fault divorce though, and require you to demonstrate a "good" reason to divorce such as infidelity or abuse.
Somehow my wife and I are almost on the exact same level politically. And we're usually also able to convince each other to go more to the left if we discover one of us is veering even a little right on an issue.
Not 100% of the time, but we are surprisingly politically compatible compared to most couples we know.