Recognizing domestic violence and spousal rape as outside the bounds of acceptable behavior and/or grounds for redress is also a new development, in the grand scheme of things.
Do you have any evidence do suggest this is actually a leading cause of divorce, as opposed to other things like personality clashes, financial stress, etc.
Everything I've read seems to suggest that incompatible personalities and finances are the main reasons people in our society split up - which would seem to debunk your theory.
Do you seriously think that all the fights and demonstrations to get the right to divorce were mostly because of "incompatible personalities and finances"?
If it's happened so much as once (and I don't think that's controversial), then it's a good thing we let people get divorced instead of telling them they had better find ways to love their partners.
I don't see where the comment you are replying to claims that domestic violence and spousal rape are the leading cause of divorce or even a leading cause.
Everything I've read seems to suggest that incompatible personalities and finances are the main reasons people in our society split up - which would seem to debunk your theory.