WHY would a military just randomly "arrest" the entire country? Is it a coup? Was it shoddy leadership and they want to topple the incumbent?
Who said anything about a military randomly arresting a country?
You missed the greatest reason why a military does anything. A military does what it is ordered to do by whoever is in control.
Like any good ideologue, you're doing this thing where you hand-wave away the nuances of real life, and hide behind vague language like "control". It's obviously not mind-rays and alien technology, so what's the exact story explaining that control?
I'll even help you out, E.g.:
some military generals are in a meeting with the political elite, and there's tension because one side wants to cut the weapons budget and put the money elsewhere. After the meeting, the generals then make a secret pact to overthrow those clowns, and there's your coup in progress.
So who's "in control"? Nobody. It's a dynamic situation with negotiations and passing the ball around on the fly.
In almost all cases, people in government are there because they like to be in control. Many of these people are control freaks. Usually, they own the military... at least as far as being able to command the military.
And Donald Trump could statistically be a very lucky idiot who got where he is today by a series of lucky accidents. Sounds like you're projecting evilness and malicious intent into the actions of others, when you don't know what makes them tick.
Control freaks often like more money, usually so that they can get more control. What do they want to control? The people, of course. Why? So that they can tax the people for more money, of course.
If the people don't have guns and the military does, government leaders who control the military can take control whenever they want, via their military.
So goes your theory.
Why don't many of the governments of the world make literal slaves of their nations? Because everybody sees that American gun freedom works. Push the people too hard, and they will get guns, and you will be dead. At the very least, you will lose control.
I realise America is the centre of the universe, but why so modest?
When you say slavery, what would they make the people DO? Work harder? Wouldn't they have to market it as some kind of utopia first?
Taxation is slavery.
Then why does the English language have 2 different words for it?