What a bunch of horse crap. Being told what to think,
what to buy, who to vote for, how to feel.
When an airplane has a problem in midair, we don't let the passengers each have one equal vote on what ought to be done, regardless of how much they know about flying.
A doctor doesn't crowdsource ideas in the middle of surgery. She certainly could, and it might work, but only if the crowd consisted of qualified doctors.
I'm not advocating to anything other than "one person, one vote" democracy, but surely the success of such a government depends almost exclusively on the quality of minds found in the electorate -- and I'm sorry, but "quality of mind" correlates pretty strongly with education.
You may fancy yourself some sort of exceptional autodidact who needs no education. Perhaps you are right! This is not the case for the vast majority of humans. The vast majority of humans are (by definition) not of exceptional intelligence and drive.
The drafters of the constitution did not want the citizens of the country to have up and down votes about specific policy. Add to that the limited spread of information due to lacking infrastructure (and, well, a man on a horse on a several day's ride being the fastest way to carry news), and the populace would be too ill informed to be able to make a decision based on current facts. This is also why the US does not elect presidents based on popular vote and uses electors are representatives for the local voters.