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?
Obligatory correction that capitalism =/= free markets and free markets =/= capitalism. Markets existed long before capitalism and will exist long after it.
Capitalism very specifically describes the economic relationships between owners of capital and workers. Without the exploitative relationship, it’s not capitalism.