Your biggest problem is getting those 100-1 advantage together in one place with any viable leadership. You have no secure communication, no training, no effective tactics, no mobility,no night vision, no air cover
You are what is commonly called a target
In the event of natural disasters, every serious Militia has morse code and telegrams and they could easily adopt encoding/encryption in the case of warfare, as well as walkie talkies that are independent from the grid. There are also many many others way to communicate than that.
Did you know that many Militia members are active and veteran soldiers as well?
Did you not read the history of the Battle of Athens, where the National Guard "conveniently" was unable to assist the big bad government to repel those "traitorous" gun owners?
You really seem to think that individuals are going to fight the government alone, instead of as an entire community, or even an entire state.