The only reason Bush Jr. bucked the family on Trump is because he has future political ambitions. He knows that he is the last of the Mohicans for the Bush dynasty.
He should publicly denounce his family for turning against Trump and for tacit support of Biden. Then he should run as George P. I don't think it'll help that much but it won't hurt.
Does anyone believe any Bush? Bush 41 voted for Hillary. Clinton and W are joined at the hip. Laura and her daughters are liberals, now out of the closet. Jeb is wandering around in search of a purpose. All of the Bushes support amnesty. They used the GOP to further their own political ambitions and then dropped it when Jeb was knocked off. No loyalty or principles.