I don't follow your logic, you're saying that if the human mind isn't computable, all our research of AI is a waste?

What if weak AI systems are extremely useful? What if we don't need to mimic the human mind to create intelligent systems? What if machine intelligence is very different than human intelligence?

We may never build a replica of a human brain. I think it would be absurdly lucky for the Turing model to be the correct one for understanding the human mind since it was developed without much knowledge of how the human mind works. But is that the only way for AI to be successful in your opinion? I don't understand that perspective.