The Constitution does not specify any limitations on the 2nd amendment based on some bureaucrat’s assessment of what a citizen theoretically needs to protect themselves or to harvest wild game. In fact it does not mention either.
I wonder what the author’s thoughts are on limiting certain technologies in the exercise of free speech? How many people does an average citizen really need to reach anyway? Lookup the Fairness Doctrine and how it is (attempted to be) applied today. These issues are children of the same parents.
Well, the 2nd Amendment does not apply to the state. Any state has the right to restrict weapons. But state and local governments are—or should be—much more accountible to the citizenry. Which is why the concept of electing judging is vital to the preserving of state rights. In 1789, the legislature was supreme, the governor was weak and the power of the counts was limited in scope and function. But as the legal profession has grown so has the power of the courts. There is hardly an institution in American that does not dance to the tune called by the lawyers.