Earlier quoted context omitted.
Hand-waving things away with your absolutist statement is what truly seems naive. IMO there is far more nuance than you suggest. Democracy seems to work well for some types of problems but not others. What happens to democracies when faced with threats that manifest over very short timescales? They aren't nimble enough to respond in time. This is most evident in larger democracies; look at US/India responses to COVID…
One thing about a democracy, if poor choices are made and poor leaders are selected, it’s only temporary until the next wave of elections. But in a dictatorship, or even something that masquerades as a democracy but is not, those choices may go unchecked for decades.
With sufficiently bad choices in a democracy it ceases to be a democracy before the error is corrected. Also, even when that doesn't happen, its possible for a choice to be bad but repeated in a democracy.