Fair enough. Thats why I usually downballot blue too. At best it prevents local rightwingers from gaining momentum and at worst it gives the DNC enough rope to hang themselves with.

I only see the system changing in two scenarios short of civil war or coup. Either the dnc will lose and all the less privileged libs who wont collaborate with the fash join the fight, creating an actual resistance OR the dems will sweep a super majority and continue to enact right wing policies for the entire term with no excuses, disenfranchising young voters and creating a vacuum for a third party.