After the Fuhrer came to power he certainly made sure the troublemakers and naysayers, the opposition, traitors to the Third Reich, came to a sticky end. Why then shouldn't we treat our own, homegrown, dissenters, disruptors and bad-mouthers, with similar disdain and harsh treatment? Hell, do we want America to be great again, or would we rather diddle around with high-sounding waffle about freedom and rights, while doing absolutely nothing to stop the rot?
"Terrorist" has always referred to the way a government treats its citizens. It still does, but citizens are a mess now; they don't know what they are saying.
