You know the definition of tyrant is not giving people a choice because they can lose? Even Pinochet stepped down when he lost the second referendum on his rule.
I dont think democracy and tyranny mean what you think they do.
I didn't actually specify that only tyrants and demagogues initiated them, though don't let that stop you making assumptions. Quite often, they aren't in power and use them to skew the debate to promote their own particular brand of lies. Read up about the Savoy plebiscite as a classic example of how a vote can be manipulated. You may even learn something.