If the lights stay on and food stays on grocery store shelves and people aren't getting dragged out of their homes by revolutionary militias, then democracy is still succeeding in broadly keeping the peace and keeping things humming along. If half the population wants to believe stupid conspiracy theories about the last election, that's fine so long as most of them don't act on it. So long as their attempted coups or revolutions die in the crib before they can do much damage, then democracy is working.
> It’s a failure of democracy with one party trying to take over and destroy all other opinions by all means necessary
Lots of people talk shit but almost everybody is still going about their daily lives in a normal civil manner. Obviously the state of American democracy could be better, but don't pronounce the patient dead just because he tripped and got his knee bloodied.