You’ll need a governor with a real set of stones to call up the “unorganized” militia, but just calling them up would instill instant national folk-hero status.
Imagine ... the governor calls for all able-bodied citizens, ages 18-45, to report to the state capitol building by noon on Saturday. Every responding militia member must bring a serviceable centerfire rifle greater than .22 caliber with at least 200 rounds of ammunition for same. Sidearms may be brought as well but only rifles will be counted for militia duty. If the governor wants to be super cautious, the call-up could be limited to military veterans only, to weed out undesireables.
Additional call-up requirements could include camping gear (to include campers or Winnebagos), a knife or “well-scoured hatchet” (sorry, that was one of the old Minuteman requirements), food & water, ATVs, etc.
Even if the governor simply took names then disbanded them, just the sight of so many armed citizens ready to defend their state would make a potent statement!
The ramifications would be enormous! DO IT!
Calling to the capitol would be difficult for many. The militia requirement is that citizens have weapons, not cars.
The old statutes generally required people to know their mustering point, and militia leaders in advance, a practice that has fallen into disrepair.
Some states still have militia districts on their maps, but it is doubtful that anyone knows theirs, or where the mustering point would be, and there is no procedure in place for electing captains, etc.
A good substitute would be to order all members to report to their local fire station, as most would know where that was. OTOH, this could result in smaller groups of disorganized people who could then be targeted before they became effective.
Still, I think you have a point.
The state of Idaho is pretty much one, big militia.