Part of the waste from an IC engine and its processes can be reused, not to mention that bio available alternatives have already been found. If we really want to go there, hydro engines have been hashed and rehashed and the only thing making them unsustainable that I've seen is that it'll get ya disappeared. If the technology for EVs could be obtained without stripping the planet and if there was a sustainable disposal process you'd see me right here on board with you, or hell, even if they were proven to be a slightly lower net damage. I saw three days ago where somebody posted their charging record from hauling a camper with a Rivian from CO to TX, they had to charge 9 times in a 12 hour drive. When that becomes sustainable, I'll change my tune.