The parent is living in a different reality. They are all hugely popular products, just because he doesn't like them doesn't make it not true. And their introduction made a massive impact. Maybe not on the level of the iPhone but pretty impressive. The vision pro thing is a major flop. Nobody wanted one before it came out and nobody wants or needs one now and it's too expensive. It's a shame, because like e readers they are massively underused as a technology.
TBF, The Vision Pro failed from a sales perspective, no doubt, but after getting a demo at an Apple Store last year, I can see how it is promising tech once they make it a smaller form factor and cheaper.