The purpose of the Second Amendment, according to its own words, is to provide for a "well regulated Militia, being necessary to the security of a free State." And according to the Constitution, the militia is to be used to, among other things, "suppress Insurrections."
So it doesn't appear that the Founding Fathers had anti-government people like Harris at all in mind when they wrote our governing documents. Instead, they had in mind fighting wars and putting down rebels.
George E. Harris
Salt Lake City