Nope, won't matter if its Trump or Desantis. Between the direction Americans are headed and rampant cheating, won't be anymore Conservatives in the white house.
I am not sure why you think DeSantis could do one tenth of what Trump has done nationally, but I don’t argue that things look bleak. The states that locked Trump out in 2020 still appear owned by China or the Dems.
If Trump couldn’t overcome them, DeSantis wouldn’t have a chance in Hell.