The problem is the interconnectedness of "practicing a discipline" and "surviving". The modern economic system irreparably entangles the two concepts, so that if you want to survive, your discipline better be economically viable. Horse-breeding stopped to be something that can be done by anyone but a minuscule section of the population; same for painting and clock-making. LLMs are poised to do that to large swaths of professions that were based on writing.