See what happened in Serbia: https://www.reuters.com/world/europe/serbia-votes-students-s...

Also, I think big and powerful government would implement very strong surveillance and stop any kind of revolution, even stop every nascent seed of revolution and control every communication medium. The acts of terrorism would be sufficient justification for an increase in control and surveillance.

So, as a summary, I think that it's a better idea to try to improve the system from within and peacefully, and that observing what happened in Serbia may be helpful.