If "your" military is on the "other side"--what then, you still have no need? How do revolutions work? Any differently?
How do revolutions work? I would think they work in more or less the same way everywhere. It's instructive to study the successful and the unsuccessful ones.
The primary purpose of a machine gun remains to defend human life and liberty; the means by which it is used to effect it's purpose still does not change that purpose.
The primary purpose of a machine gun is to kill humans.
As has been pointed out in this thread, the machine gun is an inanimate object. It has a design purpose but it's use is determined by the person holding it. The person holding it can tell the machine gun that, "your primary purpose is to defend human life and liberty" but the machine gun is inanimate, it isn't alive, it has no sense organs, it can't hear; it has no brain, it can't think. The machine gun is a machine, it acts in accordance with the laws of physics. Until someone acts upon it, it will do nothing. If it sees oppression, if it sees a threat to life and liberty, it will do absolutely nothing. It will do nothing until a human picks it up and operates it.
It seems that an equally valid argument is that since oppressive governements use the military and police to oppress the governed (that's how oppression works), and the military and police need to be able to kill effectively, and machine guns allow that, because of that they should be restricted from the military and certain police units.
If you think it's a good idea to disarm the military and certain police units, say so. Just don't let the word get out though.
If your argument is "people" can't be trusted with fully atomatic weapons, then that argument applies to the miitary and police as well. I just don't think that's your argument.
You're right, it's not my argument.
I haven't got any millitary service so I can't speak for the military.
I do know that certain police units have access to machine guns in my jurisdiction and I do know how restricted and carefully guarded they are. I know that only certain officers in those units are allowed access to those firearms and I do know that there is a very stringent competency requirement and all sorts of restriction on their use.
I did say I have no military experience but I would imagine the military doesn't encourage its personnel to take home machine guns.
I know that before a police officer (where I live) is permitted to apply to enter that unit that they undergo a stringent battery of psychological (and physical, but that's not relevant here) tests before they're allowed to join and commence training. The purpose of course is to make sure that an officer is fit to be trusted with superior firepower in the shape of a machine gun. The officer has to demonstrate that trust in his or her being armed for specific duties (not routinely) isn't misplaced.
Even if we stipulate to your assertion that the primary purpose of a machine gun is to kill people--I will ask yet again--So what?
It's good to avoid indiscriminate killing of human beings in a domestic setting. Indiscriminate killing of human beings is part of warfare but not part of normal domestic society.