Article V requires that they do. I they do not, they are in breech of the Constitution and it moves to the courts.
My point was not clear. They physically do not need to do anything. If not, do they send in the National Guard, the army, police? Just simply do not do anything. Your assumption is that there are people who will take it to the next step. I say that is questionable at best. These scum do not play by the rules or respect the laws.