I think, we can easily bet on the fact, tha Musk will not produce 20 million cars in 2030. He cannot, because 2025 is due to fly in direction of Mars. And this guy always delivers on his promises, does he not?

Imho, EVs may achieve maybe 30% penetration on new cars before somebody puts a cap on further growth.

It is not just about raw materials but also about the energy output, which nobody has to support conversion of  the fleet.