People learn what they need to learn to be successful (if they want to be successful). The newer generation of coders will learn exactly what it takes to be better than their peers, and that will still include building rock solid, highly performant software to beat the competitors, or they'll lose their jobs and someone better will do it.

If they do it entirely using AI to code, and the end output is good enough, they'll learn all the right skills to do this.

Human's always think everything is sliding into doom, and inevitably, it doesn't.