No, I'm not trying to be an alarmist, just a pragmatist, from what I've heard and seen recently. There are people in our country who base their whole existence on undermining the United States, and most of them are U.S. citizens, not foreign interlopers.
Starting in the 1960s, we've had a string of violent, anarchistic groups that have caused havoc all around the country leading up to today's extra violent groups who are using the “race card” to foment disorder. One of the “fathers” of this anarchistic philosophy was the founder of “Community Organizing”, the late Saul Alinsky, whose “Rules for Radicals” seem to be the bible for these “Apostles of Anarchy”. Some of the purveyors of the Alinsky philosophy are the “race baiters” Jesse Jackson, Al Sharpton, Minister Louis Farrakhan, and the “Squad” (Cortez, Omar, Tlaib and Pressley), plus the Marxist founders of the BLM (Black Lives Matter) movement, and a goodly contingent of the Democrats in Congress.