That's a good quote. Whenever I see that quote by Adams about our government being fit only for a moral and religious people, I think--what kind of maniacs would create such a utopian system???
Desperation. They really feared the rot they saw coming from Europe first during the French and Indian wars and then from our French allies during the Revolution. They saw the democratic impulse—they threat of the mob—feared it more than they feared a monarch or judges and attempted to ward it off by a fairly strong but limited Republic which was designed to curtail democracy. Before Jefferson, “democrat” was a slander. Even Jefferson ran from the word and insisted he held republican values.