Earlier quoted context omitted.
Well, this presumes that it's a government acting in good faith. Sure, something like the UK or a EU country should have dissent and criticism to keep democracy healthy. However, countries like China, Russia, and NK, have no interest in fostering a healthy dialogue and it wouldn't be very conducive to their government's interests.
> it wouldn't be very conducive to their government's interests. It depends on your timeline. If you eliminate dissent you may be able to push through short-term aims or develop a facsimile of national unity, but you will naturally eliminate nuance from your geopolitics. Even one or two generations into this experiment, you can wind up with a leader who truly "drinks the koolaid," who assumes the state propaganda to…
There possibbly is no leader in history who drank the state propaganda koolaid as deeply as Chairman Mao. He accidentally murdered tens of millions when the propaganda turned out to be incongruent with reality. Meanwhile he stayed in power by butchering millions of potential opposition members, and by having nukes and ten million soldiers which impressed Nixon enough to bow and scrape before him.
The lesson has been learned by Chairman Xi. As long as he brutally cleans house domestically and is a MAD-level military threat, absolutely no one can doom his regime.