[chrisjj]

Imagine an invention that does a perfect job of brain surgery. And brain surgeons complain.

[vouaobrasil]

Now imagine a day where a new type of disease is discovered, but it needs some mechanical help from a surgeon because the AI just can't make the leap to do that. But there are no more surgeons because they didn't want to pursue a worthless career. What then?

The problem with your argument is that word "perfect". AI will never reach that stage and there will always be costs.

[QuesnayJr]

When that day comes, you think they won't? They spent their lives carefully honing a skill that is now worthless.