That makes no sense at all. The only way governments have "insurmountable advantage" is if they have more firepower and people willing to use that firepower than people willing to oppose them (plus their firepower). Governments do not (yet) have armies of robotic soldiers willing to do their bidding without question; this isn't the Clone Wars or droid wars or whatever. Governments need armies to do their military will, and those armies are composed of the People. This is why governments generally don't succeed at oppressing their own people; they can't get their military to go along with it. Now, of course, if the government is oppressing some other people (i.e., they invaded a foreign country), or they're oppressing some hated/demonized minority, that's another matter. The French and Polish didn't have much say in being oppressed by Nazi Germany, nor did the Jews/Gypsies/Roma there. However, the German people were not oppressed by the Nazis: they willingly elected them, and happily went along with their rule (except for some small minority of resistance forces).

I challenge you to show me any example of a government which was absolutely hated by its people and somehow managed to hold onto power. I don't think there is any. Every government gets popular support from somewhere, or else they wouldn't have an army to maintain their rule with. With occupations, it comes from the occupying nation. With places like Saddam's Iraq, it came from one powerful portion of the population that happily stomped on the other portions. With places like North Korea, it comes from a population that's been brainwashed into thinking the Dear Leader is basically a demigod.