Correct, but it goes deeper than just the building components. In the US you have to go through an entire military procurement process within each iteration loop. So you design a weapon, then try to sell it to the military, but just the process of demonstrating it and selling it to the military takes a long time and costs money. If you fail you can go back to the drawing board, but each iteration loop is probably a year minimum. And if you are successful now you have to set up and scale production. Get ready for years of environmental reviews and lawsuits.
In Ukraine the military will take any drone they can get their hands on, so all you have to do is build a drone, give a bunch of them to the army to try out on the Russians, and within a week they will tell you if it works or not. So your design iteration loop is probably weeks. If you are successful, the time between hearing the general say "give me 1 million" and when the bulldozers start clearing the factory site is probably measured in days.
There are plenty of things to complain about here, and that is one of them. But that authorization was passed by our elected representatives by a super majority and reauthorized by them multiple times. It was not done by a sneaky maneuver where the majority of congress voted against it but somehow it still became law.
One country is not in any way obligated or expected to have the same entry requirements as another. It is based on priorities of the state and those differ greatly between states.
Permanent residency is a deal (not necessarily business related) between two entities: an individual and a state. It has everything to do with whatever requirements that the two parties have, and if there is no agreement on them there is no deal. In this case the state cares about language proficiency and requires it for a deal, so if you are not proficient in German there is no deal.
In Ukraine the military will take any drone they can get their hands on, so all you have to do is build a drone, give a bunch of them to the army to try out on the Russians, and within a week they will tell you if it works or not. So your design iteration loop is probably weeks. If you are successful, the time between hearing the general say "give me 1 million" and when the bulldozers start clearing the factory site is probably measured in days.