Although we have machines that now cut and bind books, the best book binding (and most aesthetic) are done by hand by enthusiasts on, e.g., Reddit. Moreover, such book binders don't feel threatened by machines, I would think, like how people who do DIY do it because they like it, rather than because they
have to do it.
Even if an AI can write an essay, that would not stop me from writing. Essays have another important dimension, which is that of creativity and the message. I think the only real relevance is in the context of school work, outside of that I don't think the AI's ability is that important. People are intelligent already, and competition between writers or the general tendency to influence each other sometimes is even a good thing.