What then? A non-democratic republic, e.g. a dictatorship of a committee? A monarchy, which is little more than a dictatorship crossed with religion/tradition?
I'd suggest that anyone coming into a comment section with vague anti-democratic platitudes is not worthy of a good faith discussion over their precise meaning. If they're unwilling to state their position outright, I think it's entirely fair to chalk them up as a dog-whistling fascist in the current climate.
I invited him to clarify his remarks and he has not chosen to do so. Being deliberately vague when criticizing democracy is a bad look but whatever he really believes is evidently even worse.