Do genetic algorithms create human intelligence directly, or do they create the capacity for a human brain to develop it?

I genuinely don't know if anyone knows the answer to that.

But I do know the perceptron is a toy model of an organic neuron, and that deep learning is a toy model of larger structures such as a cortical column.

And I do know some AI (not sure about GPT in particular) are trained via genetic algorithms.

You appear to be awfully confident we haven't implemented intelligence, even by the standard stated in your reply.