Why should we buy electro cars to reduce the climate change when the battery wasn't enviromentally friendly produced and we're additionally going to run short on lithium to produce them?

https://www.quora.com/Why-should-we-buy-electro-cars-to-reduce-the-climate-change-when-the-battery-wasnt-enviromentally-friendly-produced-and-were-additionally-going-to-run-short-on-lithium-to-produce-them/answer/TL-Winslow