AI can make fully functioning computing solutions. That's just a fact and denying it is like denying that a bicycle can roll and only four wheeled vehicles can.
Or saying that a car is a better vehicle than a bicycle. That is probably true, but many times for many people a bicycle is all they can get.
Glad you went for this analogy. It’s like an AI producing a board with a beach umbrella nailed on it and four wheels, and saying “meh it’s good enough for transportation, human car designers are doomed”. It’s functional, right?
A pain plate of rice is bad food. But would you prefer starving too death? Or for others to starve?