There's a flaw in your logic. Neoliberalism is endemic to both parties. Privilege allows either and/or both parties to continue to function as controlled opposition for each other and as puppets for the oligarchs. Please check out these resources:
Anyone who thinks Bernie or Bust makes no sense does not understand desperation . . .
Neoliberalism is an infestation that will not be eradicated unless we stop voting for the lesser evil.