American patriots aren't usurpers. A patriot doesn't plot to overthrow government. A patriot's only political duty is to champion, protect, defend and guarantee the natural, God-endowed, inalienable individual liberty of all.
That inalienable individual liberty of all is naturally above the purview of any government, which is why all statist government naturally acts to overthrow individual liberty instead of championing, protecting, defending and guaranteeing it.