Tell that to the NRA. It seems that a huge number of people in the US are convinced of two things:
A) That the government is going to try to take their firearms away and then proceed to oppress their rights.
B) That if they retain their guns, they have a chance against the government (i.e. military) if it tries to take their rights away.
Perhaps I read a little too much between the lines here, but the concept that a bunch of hunters can really face down a well organized and properly equipped military force is kinda silly for a couple major reasons. First, the "soldiers" would not be getting paid, and would not be getting resupplied. Therefor this sedantary force would only be able to operate for a short period of time before they have to put down their rifles and pick up their pitchforks, so to speak. Second, consider the qualifications of these "soldiers." At least in Texas, every man between 12 and 70 has a hunting license, and a good percentage of the women as well. Most of them do not know the first thing about military tactics. Heck, most of the "hunting" here is more like deer harvesting anyways. They sit in their stands and wait for the deer to eat the corn they have set out a few yards away. These folks lack either the desire, ability, or knowledge to even track down an animal, kill it, and use it... much less try to hunt prey that has been trained in war and is also hunting them. I'll reach back to quote Confucius... "To lead untrained people to war is to throw them away." Gone are the days when hunting weapons were similar in capability to military weapons. Gone are the days when most American children were raised gun in hand. Gone are the days when developed nations actually fought wars against each other.
Of course there are plenty of civilian organizations that would be incredibly helpful during a real emergency, such as the National Defense Transportation Association, but they are designed to work with and in support of formalized government operations.
I think you underestimate the ingenuity of the American Redneck. (surprising for a Texan)
How much fertilizer (ammonium nitrate) is available in your county? How about blasting caps? Based on our agricultural and mining operations alone, there is enough firepower to make some serious dents in the american military.
How many vietnam vets are out there? How many Iraq and Afg vets? I bet a bunch know how to make IEDs.....I know that I do. In addition, those vets know how the military looks for IEDs....kinda like having the other team's playbook.
Supplies: As a USMC logistician, this is near and dear to me....does the government control the fuel supply? Food supply? Who has more money, goverment or civilians? Many insurgencies have been supported through the local populace (that wasn't near as well off as ours)
Spies: How many military members would continue serving only to feed information to the militia or hinder military operations.
I think that if the "militia" had the popular support of the people, enough damage could be done that the goverment would throw in the towel.
The big issue here is air power and artillery. Any large militia concentration would be susceptible to elimination. However, the military does not have the resources to adequately guard all of our anti aircraft assetts. It would only be a matter of time before the militia was able to start taking down aircraft.
The long and short of it is that if there was a popular uprising that had the support of the vast majority, it would be able to succeed. If it was an isolated uprising, then it would be crushed. I firmly believe that despite our technological deficit, the American people retain the ability to forcibly oust the goverment.
I also think that if you had a repeat of the civil war (with modern arms) the south would still lose. (as would any other conventional force who met the US military on the field of battle)
You also have to realize how many servicemen would defect to the militias taking their comm gear, weapons, and knowledge. As stated above, there are very few servicemembers who would fire on a militia that had the support of the populace.