I think that they're seeing all the scary movie stuff start to come true - but missing the essential plot holes like that one: just unplug it.

People complain about AI slop - well, before AI slop there was lazy human slop, but lazy humans generally gave up before writing too many words or painting too much mess, or digital clone-stamping too many generic things... Truth is: if you put in 1/2 the effort of making something great without an AI tool into making something great with an AI tool, you can usually get something much better out in the end - if you're sincerely trying to use the tools well.

It's the people who don't know / don't care whether the result is slop or not who are putting in 1/10th (or less) the effort of making something great who are putting all the slop out there.

I'm not afraid of the machines taking over (yet), but I am afraid that the same explosion in copy-pasta document vomit that came with word processing 40-ish years ago is going to explode again into a docpocalypse with people using AI to drown each other in supposed "legal written" communications that are only even vaguely understandable using AI tools to read them.