It sounds like you are doing your best to connect with him (I’d have loved for my parents to take an interest in my hobbies back when I was a teen), but not all kids take the stresses of going through adolescence the same way.
… And they’re very influenced by other kids, so if his friend circle puts emphasis on material things, it might be that he feels like he’s struggling to keep up with them or is actually feeling FOMO, and is taking that out on you.
Either way, best thing you can do is to keep extending that olive branch to him. Perhaps try to see if there’s any other hobbies he has that you might be able to connect with him over?
Honestly using Infowars to raise awareness of gun violence in a satirical way with help from Everytown is such a middle finger to Alex Jones and I’m all here for it