This kind of behavior followed by this kind of rhetorics is exactly why half-the-world hates you so much. Disgusting, I can't believe you aren't trolling right now.
North Korea would relatively peacefully evolve from dictatorship if it wasn't for America's pressure. This is purely Newton's third law of geopolitics. Do you really think people would go like "yeah, please fuck us harder so we can topple our government" instead of consolidating around it against a much larger evil, that fucks with their livelihood much harder (you)?
Look at Afghanistan for example. Why do you think it reverted back to its baseline and why Taliban was able to assume control over the country so fast with almost no resistance just as soon as the US had withdrawn its troops?
Or take a look at practically the whole history of young Russian Federation, from supporting ISIS-like radical islamists during the second Chechen war, to most-recent achievement of turning so many hardcore anti-war people into pro-war just by letting them have a good look at your actions.
Cuba has little to none practical international support, and yet it is still "a communist dictatorship".
Or even a better example, that would probably be easier for you to process: take a look at WWII-period Great Britain. It was a total strict dictatorship shithole. And people were FINE with that, as long as it was an effective protection against Nazis.
To North Koreans (and so many other nations around the world) the US (and by extent, its allies) are the Nazis. Simply because you can't possibly dial your chauvinism down and ask yourselves some hard questions, like how come you feel like you have the right to fuck around on the other side of the globe.
Sadly, I don't even see a realistic scenario how things could change without triggering a WWIII: America + allies (15-20% world population) vs the rest of the world.