That might be the case if we were an organisation that resisted change and were not actively pursuing reducing our staff count via AI, but it isnt. In the AI era our company will thrive because we are no longer constrained by needing to find a specific type of human talent that can build the complicated systems we develop.
So what will happen once most/all your staff is replaced with AI? Your clients will ask the fundamental question: what are we paying you for? You are missing the point that the parent comment raises: LLMs are not only replacing the need for your employees, they are replacing the need for you.
We don't produce software for clients. We provide solutions. That is what they pay us for. Until there is AGI (which could be 4 years away or 400) there is no LLM which can do that.