As someone who has voted in every election I could, I wouldn't bother. I'd vote up and down ballot for every local race and ballot measure, but there would be no point for the presidency if it is a free and fair election. Newsom winning would be all but guaranteed.

The fascists will be thrown under the bus for a few years after Trump is gone. We haven't seen the worst of what he has to offer, and anyone trying to emulate him after he dies is guaranteed to lose any fair election. Corpos will want stability, so they'll use their propaganda machines to bury the unpopular and leaderless Republicans so they can elect a neo feudalist. Most of the corruption will not be rolled back and regulations on the rich will stay non-existent, allowing the exact same shit or worse to happen again.

Any alternative to Republicans will win, so if Newsom is on the ticket then America has already lost. The only way to rebuild immediately after Trump is through radical reforms that will not happen under Newsom. We are looking at a post fall of Rome or a Century of Humiliation type future.