God fucking dammit, I take a few weeks off to go see my cousin in Glasgow, and I gotta come back to this? Knowledge: time to drop it.
First of all, I'm seeing a pattern of anti-military fetishism here that I find slightly irritating if not outright offensive. First of all, regarding the whole "state power vs power to the public" ideals, it's almost as if you're forgetting that the people in the military are actually living, thinking, breathing people, and not just automatons programmed to kill. Do you honestly think we'd let ourselves become tools of oppression for a government apparatus? You do know that they teach us about the history of our respective organizations? They don't just train us for combat, you know. There's a reason that American military personnel are called "citizen-soldiers" in a literal sense of the word, because we are trained not only to be professional warriors, but successful citizens of our American Union.
They teach us about how our bourgeois predecessors, and how they sold their souls to a fucking monstrous government, betraying their proletarian brothers and sisters for a terrible future under a false pretense of an "American Dream". They teach us about men like George Marshall, Lewis Puller, and Macaco himself, snakes who wrought destruction wherever they tread. And yet, they teach us about the brave mutineers who stood up to the fascists. They teach us about men like George Patton and Dwight Eisenhower, and men like Adna Chaffee and Smedley Butler. They teach us about the democratization of the military and the unionization of the infantry. They beat this into our heads on a daily basis that we are not to trust the word of a republican government over the words of our fellow man. I think it's good to be wary of power and where its concentrated, but please try to think in shades of gray and not white and black when dealing with questions like this.
As for the whole "civilian defense program" you have to be joking if you think volunteer militias will deter any professional military. Even the smallest Army could defeat a militia force! Have the lessons of the Spanish Civil War taught us nothing? Come on guys, that's not Libertarian talking points, that's edgy Red/Black movement insanity. ThirdMan, I know you are intelligent: please don't tell me you've started to hang out with BombThrower.
Also, thinking that A-bombs are the end all, be all of defense is quite frankly nuts. Defense does not equal razing the planet, especially since most of the people who would control the dropping of bombs aren't thinking "well maybe we should think about MAD" they are thinking "how can we achieve a manageable casualty rate and still win". Just letting you know, that "manageable casualty rate" is in the tens of Millions. Please, I beg of you: please don't start thinking of defense as simply high amounts of planet killing firepower like Curtis "Level the fucking continent" LeMay.
Now for the secondary subject: disbanding the Marines? Seriously? I knew questions like this occurred in the FBU, but I never thought something like this would be said in America. Thank god this is a minority of the American public who think this way.
But just to humor you, let's say you got one wish, and you decided to get rid of the Marines.
1. You've effectively lost not one, but two great forces to your disposal, both of whom operate under one Marine organization.
-you've lost the Fleet Marines, the shipboard battalions that effectively serve as counterinsurgency experts and commando detachments. Have fun dealing with shit like the Congo, because the traditional Army "point and shoot" doctrine ain't gonna fly in a situation like that.
- You've lost the Shock Marines, a bunch of vicious motherfuckers that punch holes in enemy defenses and cause massive casualties, giving the Army time to set up and get rolling. Not only that, but they actively move forward with the Army guards units and tank armies, shattering the fuck out of anything they go near. (Seriously, we were like a fucking steamroller.)
2. you've lost an organization whose units bear similar training and prestige as a Army Guard Unit, and we all know from WW2 the sheer amount of chaos they can cause, and how they can rally armies on the brink.
3. you've lost an expeditionary force than can do relief actions as well as combat actions. Remember the Haiti Earthquake? The first responders weren't International volunteers, they were Marines. We do more than kill reactionaries, you know.
Also, if you think the Army can do what the Marines can do, you're wrong. I love the WFRA as much as any other gravedigger*, but the Army is a little out of its league when it comes to amphibious ops. The landings in the Pacific in WW2 scarred them well enough to basically declare "the leathernecks can take this from now on."