We rape Africa for those metals the in a similar way we've been raping the middle east for oil. I guarantee once the US starts mandating EVs and the majority start to transition over there will suddenly be some reason we need to have a vested military presence in Africa, with the possibility of wars centered around countries with these metals that we need.
It's better for air quality and would do a shitload towards giving us some spare time to process climate change, but they come with their own baggage of bullshit in terms of environmental damage.