> And it worked, I still have it sitting in my shed.

Isn't that exactly the problem? That's your property, which you now can't sell. So it's sitting in your shed. Most people in that situation are ultimately going to chuck it in the trash, which means not only that you've been harmed, but that those rare elements aren't getting properly recycled.

> you could at least do something like what happens when you buy a pseudoephedrine product

The thing that causes grief at scale for anyone with a cold but has produced zero reduction in the availability of street drugs?