digital cameras is one technology replacing another technology but not replacing the photographer or the way they take photos.
AI authors means to replace actual writers, and that's quite different.
as with the photoshop example elsewhere, it may be that more writers will use AI tools to help them, which, if done with care, may be good, that's quite different from letting an AI do all the writing. while clarkesworld currently rejects any AI involvement, someone using an AI to explore ideas or prepare an outline may be harder to detect and eventually something like that may be published, but i hope they will be successful in eliminating any AI only submissions.
That sounds a lot like so many of the "this technology will never replace X", like, for example, digital cameras.
The technology frequently does.