The "writers" who can benefit from AI are not artists. They might be bloggers or journalists or researchers. But there is no way that a generative AI can produce, say, your memoir for you. How could it? You have to say what happened. Your life experience can't be generated. Ditto for any sort of novel above the level of the most basic imitative genre stuff. I'm certain AI could spit out a perfectly passable airport paperback romance, for instance—but how could it possibly write Infinite Jest?