I don't have too much of a problem with Nuclear as that doesn't contribute greenhouse gases, If you factor that in, you are almost at 50%. I agree that we need to do more. Scotland is closer to 80%.
Rare earth mines are also used for computers, mobile phones, pretty much any technological piece of equipment. The push for EVs however means that battery tech will improve quickly and hopefully move away from this sort of mining. There is an R&D race at the moment to improve battery tech. Plus, used batteries can be recycled and / or repurposed.
Once we have self-driving, that will trigger the next revolution which is your second point. We don't need to own cars. Once you can summon a self-driving car quickly, cheaply and easily, you don't to own something that sits on the driveway for 22 hours a day. That means less need for parking spaces, more opportunities for gardens, trees, cycle paths etc. Redesigning cities helps too, obviously - hence the 15 minute town concept.
My own town is quite close to that although I live on the absolute edge which makes it more of a 30 minute town.
