Gosh, I don't know. MAGA can draw in the few remaining moderate Democrats with an appeal to America and Americans First. A crackdown on illegal immigration would be popular, as well. A moratorium on immigration that would draw in the Dissident Right. Quit pandering to minority groups. One issue that antagonized the Dissident Right was the pandering to blacks with the 500 billion dollar giveway. In various ways, attempt to outlaw practices that discriminate against Whites.

MAGA could conceivably be a big tent.

In the long run, I'm not optimistic and foresee a breakup of the US in autonomous regions or even independent countries.