These are remenents of times when divorce needed a reason. Common law stuff.

The issue with holding the spouse responsible is it can keep someone in an abusive relationship so we got rid of those barriers.

There are only a few of these cases a year and they almost never lead anywhere. Most judges feel the same way as you on it.

A quick search shows that North Carlonia is the only state that really has a lot of activity around it. https://en.wikipedia.org/wiki/Alienation_of_affections