Is the Democratic Party salvageable?
No more than the Republican Party.
You mean like an old rusty car? ...Sure! The GOP took theirs to Trump’s Trusty Used Cars where they hired some cheap Mexican labor to do some cosmetic bodywork (shoddy, of course), paint it a flashy shade of “populist” red, and put on a distracting set of huge chrome wheels with some retro white walls!
No, it's irredeemably bourgeois.