An analogy can be made to alcoholism. People hate alcoholism analogies, but in this case it is apt. You simply can not tell an alcoholic that they have a problem. They have established a powerful self delusion that they are okay, even if it is obvious to others around them. The only thing that can break through to get them to sober up is some sort of personal crisis. In the case of MAGA this 'rock bottom' moment may be losing their Social Security or Medicare, but don't bet on it.