It is bad all around, because the uncertainty freezes everything, even the goal trump claims that he is trying to accomplish, which is bringing factories to America[1]. Who sane would be start building a factory when a policy could change even the same day.
[1] side note: Majority of Americans say we should bring manufacturing to America, but when asked if they would want to work in a factory almost no one wants to.
Isn't that what they are doing?