Once insurmountable challenges are now trivial to implement with, as you say, "low effort."
For those who were attracted to computing by the grind and the grand narrative that you, too, with sufficient effort, discipline, and merit, could become a revered craftsman, LLMs trivialize an entire lifetime of practice. I can't think of anything more demoralizing.
The equivalent is something like hand tool woodworking - it’s still a thing despite the advent of machines, but more of a niche. You can still aim to become excellent, but maybe you won’t be famous.
Or employable. Which sucks if you're over 50.