Two good points. Changing a government and an economic system may make persuasion possible. However, removing an entire populace that has learned to live by ideas that are stalinist, control-persuade-purge, is not feasible. Changing minds takes time. Democracy in the normal sense is as foreign an idea as "benign" socialism when an entire country has experienced stalinism in its purest, harshest form. It will take some time to persuade people who have lived with very different practical ideas of what it means to stay alive and prosper under a stalinist regime, to understand that another idea of practical life is even feasible. Persuasion takes foresight and many many tools. Persuasion takes people within the country who have their own ideas of citizen inspired change and an extensive opportunity to practice them. Cultivation of a climate of persuasion must follow overthrow of even the worst dictator if there is to be any hope of sowing seeds of even the most rudimentary form of democracy. Ideas take time but they are all there is to work with when it comes down to change.