That is what all dictators say. Like Obama.
I am not calling Trump a dictator to be clear. I am saying why I don't like your comment. It isn't his job. The President doesn't get to or shouldn't do whatever he wants in any area of society that people have a disagreement. The Big 10 canceling football was dumb but it wasn't unjust or within scope of a President.
1) Insurrection or uprising that overwhelms local law enforcement
2) Bully pulpit leadership
3) National guard if #2 doesn't work.