It would be an argument and you are free to make it. What the human mind is, is an open scientific and philosophical problem many are working on.
The point is that LLM's are NOT the same because we DO know that LLM's are. Please see the myriad of tutorials 'write an LLM from scratch'
But we have no idea how many "essential" differences there are (if any!).
Dismissing LLMs as avenues toward intelligence just because they are simpler and easier to understand than our minds is a bit like looking at a modern phone from a 19th century point of view and dismissing the notion that it could be "just a Turing machine": Sure, the phone is infinitely more complex, but at its core those things are the same regardless.