>if a human came out living but with a brain that had zero electrical activity, that would be extraordinary, we normally come out with a baseline of pre-programming.

That statement reveals deep deficiencies in your understanding of biological neural networks. "electrical activity" is very different from "pre-programming". Synapses fire all the time, no matter if meaningfully pre-programmed or not. In fact, electrical activity decreases over time in a human brain. So, if anything, programming over time reduces electrical activity (though there is no established causal link).

> I sometimes think this debate happens because humans don't want to admit we're nothing more than LLMs programmed by nature and nurture, human seem to want to be especially special.

It's not specific to humans. But indeed, we don't fully understand how brains of humans, apes, pigs, cats and other animals really work. We have some idea of synapses, but there is still a lot unclear. It's like thinking just because an internal combistion engine is made of atoms, and we mostly know how atom physics and chemistry work, that any body with this basic knowledge of atom physics can understand and even build an ICE. Good luck trying. It's similar with a brain. Yes, synapses play a role. But that doesn't mean a brain is "nothing more than an LLM".