The Constitution's Article I Section 8 does grant power to the Congress to suppress insurrections. The Civil War and various insurrections/rebellions since 1789 pretty much showed what Congress is prepared to do to suppress them, as some have pointed out.
The Declaration's recognition of legitimate circumstances for throwing off the yoke of oppression not achievable by other means was described fairly succinctly and forcefully: "That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it."
And the Constitution's 9th Amendment made clear that enumeration of certain rights "shall not be construed to deny or disparage others retained by the people."
None of which speaks to the sanity, wisdom or likelihood of success of such a path. Nonetheless, IMO it does remain a right of the People to pursue such a path if they so choose.
Example: Battle of Athens TN, 1946, though admittedly that was much more of bringing criminals to heel as opposed to abolishing or altering the "form" of their community's government.
Useful books, on the subject:
- The Origin of the Second Amendment: A Documentary History of the Bill of Rights in Commentaries on Liberty, Free Government and an Armed Populace, 1787-1792, by David Young (ed). An exploration of the meaning of the 2A at the time of founding.
- The Founders' View of the Right to Bear Arms: A Definitive History of the Second Amendment, by David Young. A review of the intended, envisioned purpose of the 2A.
- That Every Man Be Armed: The Evolution of a Constitutional Right, by Stephen Halbrook. It analyzes the 2A, where it came from, the debates in the original Congress, and it seeks to make sense of it all. This book blasts many myths out of the water.
- Supreme Court Gun Cases: Two Centuries of Gun Rights Revealed. It contains text and interpretation from every gun-related case in the history of this country, up to just the last few years.
An excerpt, from the Halbrook work:
That Every Man Be Armed: Evolution of a Constitutional Right (Ch 3, p 55):
The American Revolution and the Second Amendment:
'Strongly influenced by the philosophical classics and vigorously insisting on their common-law rights, the Americans who participated in the Revolution of 1776 and adopted the Bill of Rights held the individual right to use arms against tyranny to be fundamental. British firearms control policies that had been originally established to disarm and thereby conquer Indians came to be applied against the settlers themselves ...'
'After the armed populace had won the Revolution and the Constitution had been proposed, the Federalists promised that the new government would have no power to disarm the people. The anti-Federalists predicted that a standing army and select militia would come to overpower the people. In 1791, the American federal Bill of Rights was ratified, in part, as a formal recognition that private individuals would never be disarmed.'