I don't know this sentiment would be considered worrisome. The situation itself seems more worrisome. If people do end up being beaten on code design next year, there's not much that could be done anyways. If LLMs reach such capability, the automation tools will be developed and if effective, they'll be deployed en masse.
If the situation you've described comes, pondering the miraculousness of the new world brought by AI would be a pretty fruitless endeavor for the average developer (besides startup founders perhaps). It would be much better to focus on achieving job security and accumulating savings for any layoff.
Quite frankly, I have a feeling that deglobalisation, disrupted supply chains, climate change, aging demographics, global conflict, mass migration, etc. will leave a much larger print on this new world than any advance in AI will.