Personally, I think there would've been less death, but not dramatically less.
At the end of the day, Republicans and Dems are both capitalist and answer to the same overlords, so they still wouldn't have done what actually needed to be done to properly handle it (AKA do what China did).
Lots of the world messed this up. Are still messing this up. Maybe it would have been contained and thus fixed, but really the only example of 'western' countries doing it right are places like New Zealand, which were able to lock down damatically. USA would never do the sort of dramatic thibgs needed to contain this, regardless of who is president.