You are obviously well-versed in electronics. So, it should be easy for some American company to make new controllers for all our DJI drones, including all the ag drones that have evolved in the past years? Is making these controllers something you happen to do for a living?

Then, what about all the other signal generating devices the world uses made in China? Televisions? Radios? Computers? CELL PHONES? Automotive chip devices (remember the Covid chip problem...)? Do you have means to replace all those? Or, do we just dumpster toss all those mentioned items too?

Finally, what, how, and why would anyone care what drones do? I assume that at any given moment in the world, there are hundreds of thousands of DJI drones flying. Who watches them & how many people does that take? You could spend a lifetime if you just tried to watch DJI generated YouTubes.