An autocratic country could easily spread propaganda in the democratic country, because of “free speech” rules that most democratic countries have, but a democratic country cannot easily spread its propaganda in the autocratic country.
An autocratic country can buy an election in the democratic country, but the democratic country cannot easily coup an autocratic country.
Are all democracies are doomed to fail?
Is the future of humanity, autocracy? For the rest of humanity’s existence?
How can you say “flawed due to its reliance on people” with a straight face? We are people. Anything we create will “rely on people” in some way. Even if we make some machine to rule us, if it messes up, well, “it’s flawed because it was made by people.”
Unless you mean something different, which could very well be the case. Maybe you mean that democracy relies as people as a group while autocracy relies on an individual person or something?