> But because the person next to you drives a big car and you don't want to get crushed, you also need a big car.
My position on this changed to "ah, now I see" after seeing a video where a Miata got run over from a standing start by a lifted truck. They were both stopped at the lights, but because the truck driver lacked both forward vision and object permanence, when the lights went green he set off .. directly over the car in front.
US size escalation will continue until legislated against. It's creeping into the UK, but fortunately you can't go too large until you start colliding with solid objects. And the max weight is limited to 3500kg unless you're on a Boomer license.