The AI-powered "replacement of engineers" that everyone keeps talking about will look less like existing engineers being laid off, and more like reduced hiring of recent engineering graduates. And, as with any large-scale technology trend, it will take a while before we can say we've come out of the innovator/early adopter phase, which we are clearly still in. In my opinion, it's always easier to invent new technology than to get people to change the ways they currently do things.