FQ, JC is right . That oath We swore had a line about "Threats, foreign AND DOMESTIC". The whole point of that is that defending the Constitution is NOT the same as defending the regime. When the Regime is composed of people who openly flaunt their communism, and they fact that America is the greatest nation on earth and they want to change that, no Patriot with sense or conscience can stand with them. If you stand with a regime like that simply because "They won" then you are no better than the people of Nazi Germany who could smell the stink from the ovens , but never spoke of it, so they could claim "They didn't know". They said "It wasn't US, it was those crazy Nazi's" but I ask you, who let "those crazy Nazi's stay in power ? Who elected them in the first place ?
Don't EVER forget, Hitler came to power through the Democratic process, it was a cleansing war that removed him.