>you’ll be replaced by someone who is better at using AI

I place very little value in the idea of "getting better at using AI". It's like getting better at using a library, or getting better at using Google. Now that LLMs are widely available, their entire intent is to make it significantly easier to access information held in a truly vast body of written work.

I have also seen no evidence that understanding the resulting generated code is necessary.

If your job has a large component of regurgitating existing information, you are now competing with a machine that can regurgitate hugely more information and with lower-skilled operators.

You'll be replaced by someone cheaper using AI.