Knowing how to code doesn't make you a Software Engineer in the same way being able to read and write in English doesn't make you an author. If you truly believe the current and future iterations of GPT can code better than you, look to elevate your own skill.
If ever, a GPT-like LLM/AGI ever exists where it can distill business requirements, understand modular designs and intelligently establish complex relationships between different systems and contexts, then 99% of all jobs will perish.
This will be an unprecedented disruption at a macro scale that humanity has never seen before. All of our current economic models will be instantly trash. How likely do you think this will happen? If it does, there's no real incentive to have these systems produce anything because no one can afford to buy anything. A global revolution would be inevitable.