The EV fire argument is a lot more complex than the simple stats.
Right from rare element extraction it gets complicated. As EVs age, then fires will become more likely and are much more dangerous to life. A scrapyard full of IC engined cars is realatively safe, and even if a fire broke out, which is unlikely with the 12v disconnected, it's usually easy to control.
But a yard full of EV's damaged or not could create a catastrophic fire. The car bodies are irrelevant...the batteries are the problem, and the "recycling". This has the potential to become huge over time. Unscrupulous scrap dealers set fire to tyres an a recurring basis as an easy disposal....it's not such a jump, when disposing of a scrap EV will cost a fortune, that the same thing might happen.