In the unique situation that the country finds itself in with an authoritarian destructive candidate is that any mid alternative is golden. In any other election then less important things like the health of the leader of one of the parties(pres candidate) does matter.
In our situation if the mid party leader dies then he is replaced by another mid. The identity of the mid is of no consequence at all.
1000 people stormed the capitol. Allowing trump to win is far far far worse. Federal judge appointments alone are worth far more.