This is obviously true. In every generation of technological advancement most but not all jobs disappeared. The most difficult or obscure roles are preserved but the roles for the masses go away. AI is replacing roles in (para)legal, will replace roles in medicine, many roles in tech and many/most other industries. But not all. OTOH if you're not at the top of the food pyramid in each of these areas you'll have no role.

I remember when RPA (Robotic Process Automation) rolled out it was clear that many jobs would (and were) replaced by machines, long before more recent AI advancements

And it's folly to think that the plan of the OpenAI people was to get cheap coding labor. That's a byproduct, not the plan