That is depending on whether they "make" them or simply "assemble" them. If the parts are imported from China, they will still have tariff's assessed. That's what domestic automakers are facing.
Option 4. DJI pays off the politicians.
Option 5. DJI ships a crapload of product to Canada and waits for the US to make them part of the US.
Option 6. Same as Option 5, only with Iceland instead.
Using similar logic, 114 people died in gym related accidents in the past 17 years, whereas only one person died while eating a donut. Obviously we should all stay away from gyms and head to the donut shop!