What you describe was an "age of enlightenment"-style idealised version of democracy that lived for a short time before it was being killed again, bit by bit.
And that direct democracy thing ... it works for the Swiss, and many would argue the problem today is not too much democracy, but too little, and it becoming ever-smaller.
> that direct democracy thing ... it works for the Swiss
We don’t have direct democracy. Our initiative and amendment processes have a referendum component, but it’s tightly moderated by the legislature and requires supermajorities to override it. And to the degree it's being discussed, it's with respect to reforming it so political parties can't bypass the parliament.
It traditionally only means "the electorate decides on topics directly, not with representatives who are not bound in their decisions to their mandate". Again, see Switzerland, which works just fine with direct democratic elections with groups ranging from a few hundred voters on a market square to millions of electors in the country as a whole.
It's also a jury looking at a fellow citizen getting hung out to dry by a crooked/ambitious DA and law enforcement entity, or shifty looking DEA agent and saying "Enough is enough. This is overreach, dirty, and wrong, and every last one of you knows it."
Nothing is a given about how our system works. Justice and politics are constantly evolving things. Each process serving as inputs to the others.
We try to create a world of predictable consequences. We try to minimize the number of places surprising things can pop up from. However, deep down, we bear forward the history of abuses by systems past, which is why we maintain these safety valves, even if they are infrequently used, lest our vigilance wane that they need to be used again.
It's why jury duty is the most important damn responsibility in the country.
There are practical and logistical problems of course, but there is no evidence of it actually failing. An educated population can decide to defer decisions and a majority probably would. At least the societies ready for it.
I think parliamentary democracy becomes more interchangeable with technocracies with certain groups carefully gate keeping for their in-group. This would fail at least as predictably.
Sort of. It’s tyranny of the majority [1].
The meaning of democracy has changed over millennia. Classically, democracy encompasses “freedom of assembly, association, property rights, freedom of religion and speech, inclusiveness and equality, citizenship, consent of the governed, voting rights, freedom from unwarranted governmental deprivation of the right to life and liberty, and minority rights” [2]. Each of these involves constraining majoritarianism. Unfortunately, in modern use, this balance has been lost, with the term democracy becoming more and more interchangeable with direct democracy, a system that predictably fails.
So classically, no, jury nullification of lynching is a failure of several fundamental democratic principles. But in a modern sense, yes, it’s the will of the majority of a certain set of people.
[1] https://en.m.wikipedia.org/wiki/Tyranny_of_the_majority
[2] https://en.m.wikipedia.org/wiki/Democracy