> DIY hobbyists may also find it more difficult or impossible to source parts for their projects.
replyI mean not really. A quadrocopter is a remarkably simple thing made out of extremely generic parts: 4 DC motors (and ESCs), a radio, a computer, a battery and an inertial measurement unit. Anybody with a rudimentary amount of electronics knowledge can build one, the components are extremely widely used. The most unique parts about them are the frame and propellers, which are pretty easy to fabricate.
On a certain level you're right, but in practice you're mostly wrong. There is nothing exotic about the electronics found on the average FPV drone, but hobbyists today rely on being able to buy (e.g.) integrated electronic components such as flight controller boards and video transmitters, as well as purpose-optimized components like cameras, motors, and so on. All of these components are much smaller, lighter, and better-performing than the bodged-together setups that were used in the early days of the hobby (e.g. repurposing wireless security camera gear for video), and losing access to them will have a very real effect on what can be built and flown.
replySource: I've been flying R/C aircraft of various types for over 30 years. Last year I built, I think, at least 7 FPV drones (a mix of fixed wings and quads).