Western countries are not run on direct democracy, because it is known to fail quicker. They're representative systems.
What you are essentially talking about is mob rule (direct democracy) which is a risk for any government, but for it to really manifest in a way that threatens the state it has to fail to balance the basic needs of the people and also become out of touch with any of their strong expectations which go beyond the basic needs.
If people have low expectations and have adapted to their environment, then it's not that much of a threat. This gets further solidified by punishing anyone that goes against the state and censoring any information that is inconvenient.
Many authoritarian governments have failed to be comprehensive in handling those aspects, but increasingly the oppression and control of people is becoming perfected.
The assumption that all people everywhere have sufficient opportunity, free communication, education and numbers to successfully push back against their government and thus it is always their fault that their government exists seems like a result of overlooking the very long study of imbalances in power between people and government. You cannot leave this to an assumption as an uncontestable law, which is precisely why the United States is setup the way it is to make sure the people have power and communication in order to check the government.