I know you're just willfully dumb, but other people reading might think you actually have a point.
No army in the world including the US could stop a civilian uprising of even a million people who have just rifles and the will to fight. They don't need nukes, tanks, or airplanes. If a large enough percentage of people, say 2% of the population, decided to fight a civil war, the US army/gov would fall in a few months if the rebels knew what they were doing.
It would be a guerilla war. And all of the critical infrastructure in the US could be destroyed in a month. No gas. No electricity. Smaller uprisings would be easily squashed.
Now, would this ever happen? Unlikely. Americans can barely get their fat asses out of bed much less do military operations for weeks at a time. Things would have to get incredibly bad and a leader would have to organize it. But it is possible.
My problem with this thought is that a civil war = government forces vs cilivilan militias.
I imagine it more a weakened government (but still with a functioning military) supported by civilian militias backing the government, versus various large and small insurgencies possibly with foreign backing.
I mean, don't color me surprised if a civilian uses a drone to commit an act of violence in the future. We're on the precipice of autonomous drone assassinations.