Umm, it's not just that. The most advanced company in the world at recovering precious materials from solar panels is a French company that uses a chemical treatment to recover the silver intra-cell wiring. Even they are not really economically feasible. The reason the EU recycles is because they have to. Not because of economics
So no, it's not just solar panels in the US. The technology to make recycling solar panels feasible just doesn't currently exist
Thats a much more nuanced point. Government regulation can help here for sure.