There are dozens of militias. Far right, anti government, Nazi, KKK, Asatru, probably hundreds of them.
For one reason or another they can't seem to differentiate between well regulated and unregulated. Any gang of scofflaws and blackguards can call themselves a militia.
We've got a standing army now. Which also isn't exactly working out all that well either. Just like the kings men and Redcoats of yore once dominated every nation in the world, the US "militia" is stationed worldwide bullying other nations into compliance.
Good coffee, good weed, and time on my hands...