C, Python, and frameworks don't generate all-new code for every task: you're taking advantage of stuff that's thoroughly tested. That simple debugging UI server is probably using some well-tested libraries, which you can reasonably trust to be bug-free (and which can be updated later to fix any bugs, without breaking your code that relies on them). With AI-generated code, this isn't the case.
Depends on what you think with AI-generated code. Do you mean vibe-coded? If yes, then I agree, but there are also other scenarios of AI-generated code.
I use regularly AI in my hobby projects, it provides me feedback, proposed other libraries to use, or other solutions. It generates some classes for which I write tests. I also need to understand the code it generates. If I don't I don't use it. It does speed up my process of creation of code.
If other people also are accelerated lets say 30% then, everything is sped up, cheaper. I think many people use it AI like that. It is just a tool, like a hammer, with which you can harm yourself if you do not know how to use it.