Seems like a good thing to me. But, I'm sure that this thread will be filled with outraged individuals who are totally not Chinese agents.
Bringing rare earths production back to the US is a good thing. The right way to do it if you were going to do it with tariffs would have been to be consistent, with a well-established schedule phased in over several years so as not to fuck over your domestic industries which depended on the products. You would have to be a Chinese (or Russian) agent to think it was a good idea to do it all at once, and to be completely inconsistent about it and change the amounts repeatedly and chicken out on some of them and never actually institute some of them (I've been buying stuff from China all along and none of it has gotten any new tariffs) and generally waffle and whine, winding up looking stupid and weak.
Whether you're picking up your fifty cents at the door, or you're chained to a table in Moscow, either way you can fuck off for free.