Regulated does not imply a command structure, look up the 18th century definition of that word please. Also, to be clear, the National Guard IS the government. The purpose of the 2nd A was to provide a check against the government— it wasn’t a protection for the states — it was a protection for individuals — the Bill of Rights was a declaration of individual liberties not protections for the states. The tenth amendment is an outlier, but even that was part of a coordinated effort to limit the size, scope and power of government.