Are you willing to murder, or participate in acts that will lead to the murder of your fellow Americans over political issues?
Very valid question, but a two-way street.
Would military, NG, and LEO's be willing to do the same, if ordered to do so? I know history has shown there to be several instances of this (i.e. Kent State), but what if (purely hypothetically, of course) both sides main intent and common cause was to protect and defend the Consitution from an outside source wishing to destroy it?