Two thirds of those required to report to camps for internment, per the Executive Order, were US citizens.
Yes, because he has a pattern of staking out one extreme position and then doing something slightly less extreme; but both of which would have been unthinkable when laws and due process meant something.
And also, yes, because joking around is something you do on your own time and when you’re a child. Like not wanting your pilot to announce his intention to do some aerobatic maneuvers on an airline flight. Whether they carry it out or not is almost beside the point.
First, the situation itself is always serious, because because nobody in that kind of position should ever be "joking" about such a thing.
Second, this guy's not joking. A threat does not become a joke simply because it is weak/unlikely or delivered while chuckling.
Ronald Reagan was a trash goblin who destroyed our economy to enrich the wealthy.
So was Bill Clinton.
George Bush was a war criminal who indiscriminately bombed brown people.
So was Obama.
Hillary Clinton was a huckster con artist who worked for her wealthy friends.
So is Trump.
Your dichotomy is a trap. There are no good guys because the system itself is rigged in favor of militaristic capitalist oligarchs, which is the actual problem.
Point is, an Executive Order issued by the President did this to natural born citizens of the United States based on their ethnic background.