“A well educated Electorate, being necessary to self-governance in a free State, the right of the people to keep and read Books, shall not be infringed.”
What does this sentence mean? It seems obvious that it doesn’t mean only educated voters have the right to read books. Its pretty clear that it doesn’t mean only agents of the State can read books. It simply means that because literate voters are good for a nation, the people in that nation have the explicit right to own books.
Well, if you buy that parsing of the above sentence then it seems clear there’s only one way to parse the second amendment:
“A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.”
Because armed citizens are good for a nation, the people in that nation have the explicit right to own guns. The only question that remains is: with what arms shall I express my right to bear?