> human lives are the cost of making the wrong decisions ...
True.
> ... AI can't be allowed to be a decision maker
Non sequitur.
Part 2 only follows from the Part 1 if you can demonstrate that AI makes more errors, or more severe errors, than humans in the identical situation.
And for those situations, I agree with you.
But there are already many situations where the AI is making fewer errors than humans, and for those situations, it would be unethical to exclude AI (see Part 1).
True.
> ... AI can't be allowed to be a decision maker
Non sequitur.
Part 2 only follows from the Part 1 if you can demonstrate that AI makes more errors, or more severe errors, than humans in the identical situation.
And for those situations, I agree with you.
But there are already many situations where the AI is making fewer errors than humans, and for those situations, it would be unethical to exclude AI (see Part 1).