That's not true, I could show you offers of my used truck being worth more than a brand new truck of the exact same generation of model in the exact same configuration. Used vehicle prices went insane during covid as the irrational market and places like Carvana paid more for your used car once it's off the lot.
I almost wonder if people overbought into the "new car must be more expensive" paradigm so they forgot new cars were competing against used cars, and the prices of used cars became irrationally high.