Breh I think people are intentionally just not understanding his or my point.
I love alot of stuff before my time, including every artist you named in this post. I also like stuff of my time as well as new stuff. Thats just genuine appreciation of the art across all eras.
Most of these people aren't doing what your son did, which is what I did. They are just lying. This isn't just limited to young people either but it's just even less believable.
The popular consensus is that Illmatic is the GOAT album so people know its a safe choice. If you dig deep enough you'll find these people often have no actual unique opinions or tastes. Ask them what they don't like and its crickets.
Case in point: People love Illmatic, but they don't like Nas. Ask these Rolling Stone/Pitchfork types how they feel about Street's Disciple or Untitled. Or to be more fair to them, how they feel about It Was Written or Stillmatic.
There was an interview from 2011 where Tyler told Nas how much he liked Street's Disciple, specifically the lyricism on it. Nas was shocked because nobody ever brought up Street's Disciple to him. Most people consider it one of Nas' worst albums and would rather pretend it didn't happen. But Tyler saw the good in it and showed that he was a genuine Nas fan. In that case, he was talking about the music that he appreciated and spoke to him. He didn't just mention Illmatic again like a lot of people would.
Another example is Max from Hip Hop Isn’t Dead. He's the biggest Nas hater I've ever seen in my life, and up until King's Disease, he never gave any of his albums a positive review. The run with Hit-Boy was so good, he couldn't deny it and even admitted that it sounds like Nas is finally having fun, even though there were a lot of songs he wasn't into. But a couple months ago, he reviewed the 8 Mile soundtrack and when he got to "U Wanna Be Me," you could tell that he was still the same Nas hater because he acted like that song was awful. People like him have done a lot of damage in ways they're probably unaware of.