It might be cost effective if you can export the externalities of rare earth refining. It is a deeply toxic process. The only reason we don't want to rely on C

It might be cost effective if you can export the externalities of rare earth refining. It is a deeply toxic process. The only reason we don't want to rely on China is geopolitical. Besides that everyone would be happy to have China take the pollution it takes for the rest of the world to transition to electricity.