I've heard this since I canvased for Obama in 2008, before I could even vote. At this point expecting change through the electoral system seems worse than a waste, its a vacuum thats sucks up the radical energy we need to get real change.
The party is already being taken over by the energy we need -- AOC, Mandami, and more. Trump going full fascist fuck is a catalyst. We can have the left-wing reaponse to the tea party that really changes the country back to decency. Or we can just sit around all defeatist and whining, because that's worked so well in the past.