This is silly. You don't revolt by protesting on the streets. You revolt by assassinating the head (I mean in the scenarios like you describe). There are very few people who would want to try tyrannical control over a population if an attempt would come with a downside of having an average lifespan of 2 years.
In most cases the only thing standing between you and the target is inconvenience of obtaining a descent firearm.
In most cases the only thing standing between you and the target is inconvenience of obtaining a descent firearm.