Nope, not viable at all. A lot of it is straight up atomized on reentry especially for the smaller devices. Some of it is rare and some is not. The wet dream of these billionaires is they will be the first to figure out space mining and then manufacture. That’s why Elon musk has spacex and the boring company. Then raw resources like precious metals become infinite over night. Hopefully capitalism dies before that happens so we can all enjoy that.