If it were a ban on the rare earth minerals themselves, yes, but a ban on the extraction technologies just secures dependence on Chinese sources.
The reason China is a major exporter of these minerals has less to do with their availability in China and more to do with their lax environmental regulations, which allow extraction via means that are prohibited in many other countries.
So preventing their extraction in countries where stricter environmental standards are in place just means more environmental damage.
The Constant, by Mark Chrysler.
Headlined as “a history of getting things wrong”, the host goes into deep dives about what we thought we knew, how we eventually came to figure out we were wrong, the repercussions of both.
It takes a seriously funny and well researched approach to a number of major events in our history, and I absolutely must recommend “the foolkiller” a five episode exploration of a submarine found at the bottom of the Chicago River then lost to history, with a very juicy footnote delivered several episodes later, that I dare not spoil for you.