If your takeaway from the LLM breakthrough is "abstract thinking is actually quite mundane", then at least you're heading in the right direction. Some people are straight up in denial.
You have no idea what abstract thinking actually is but you are convinced the illusion presented by an LLM is it. Your ontology is confused but I doubt you are going to figure out why b/c that would require some abstract thinking which you're convinced is no more special than matrix arithmetic.
If I wanted worthless pseudo-philosophical drivel, I'd ask GPT-2 for some. Otherwise? Functional similarity at this degree is more than good enough for me.
By now, I am fully convinced that this denial is "AI effect" in action. Which, in turn, is nothing but cope and seethe driven by human desire to remain Very Special.