Ok, it's 100% true, and everyone acknowledges it. What existing mechanism would you suggest we use to overturn the election?
IIRC this is the biggest issue with any "stolen election", we have zero legal remedy for the situation. Once the electors votes have been recorded in Congress, kinda a done deal until the swearing in and then it's concrete. It would take impeachment and conviction to remove the president, then the VP would take over, so they would also have to be impeached, then on down the line. There is no lever labeled "Pull In Case of Fuckery", which maybe should be at/near the top of the list should we ever escape MrToads Wild Ride.
Not militias by any actual definition in the US.
Organized militias = National Guard/Air National Guard
Unorganized militia = every able-bodied man of at least 17 and under 45 years of age, who are not members of the National Guard or the Naval Militia. These are militia that are under control of the State Governors.
In all cases a militia is under the auspices of government, it's not random jerkoffs playing milsim shooting targets with turbans on them on the woods. Those are armed paramilitary groups at very, best, domestic terrorists at worst.