Reports of the Democratic Party's demise (and Republican Party's demise) in recent pendulum swings have proven time and again to be rather premature.  Give America two or four years of Trumpism and most likely you'll see the same atrocious Clinton/Obama style corporatists on the Dem side making a resurgence before voters get tired of them after four or eight years and swing back to Republican corporatists.  The only real losers in the back and forth between our alleged two party system is the American people.