That’s mighty hard of you to really claim, since EV’s only started to become common about 12 years ago. It wasn’t even until 2017 that the EV market broke 1% of vehicles on the road. Li-NMC batteries will eventually fail. They haven’t been in EV’s long enough to say they’ll likely last 15 years. If they industry was really sure they would, the warranty period on them would be better than 8 years or 100,000 miles to provide 70% total capacity. If I only had barely over 2/3 of my battery capacity left after 100k miles I’d be pretty upset.