Truth of the matter is....it is IMPOSSIBLE to control another human being. Be they your spouse or not.
Anyone who has ever been married to a philanderer or drunk or drug abuser can tell you that.
Kellyanne should resign not because she can not control her husband. But her high position make her vulnerable to exploitation by jerks like her husband. He's trading on her name. If he were Joe Schmoe with no ties to Kellyanne, the NYT would not have a thing to do with him. They allow him the op-ed as a way to embarrass the President.