Not sure I agree. Trump was kind of stupid, Desantis looks smart. Trump's presidency was kind of doomed when they lost heavily the House 2 years in his presidency, and he was a massive underdog for the presidential election. His main contribution to the Republic cause was essentially approving McConnell's judiciary appointments.
Desantis won't be a cult leader, but could be a more effective Republican president than Trump.
I guess the best thing to wish is a Republican civil war between Trump's and Desantis' fraction. Probably an ugly one to divide the base and give again a unified Democrat government/legislature.