By any chance, are you typing your replies on some kind of computer? Perhaps one containing a selection of rare metals? You can’t just point at cars and say “evil” without addressing the entire rest of technology.

You are confusing cobalt with lithium.

Also the existing oil industry also uses cobalt

https://www.chargesmart.co.nz/amp/cobalt-mining

Better a few children mining lithium then fossil fuels killing the whole planet.