The problem ChatGPT - but especially image, audio and video AI systems - has is that these systems have drastically lowered the barrier to entry to create harmful content.
Everyone can rig up an AI prompt to draw a convincing picture of a politician having sexual intercourse with a child in a matter of mere minutes - a work that would take even a dedicated visual artist many hours. For "voice cloning" AI, it's even worse, as it was practically impossible to emulate that unless you had access to a person talented enough to re-enact voices - and now anyone can pull off completely "legitimate" sounding prank voice calls.
The general availability of such specialized AI completely erodes trust in anything not happening face-to-face - it was already bad enough with people denying actual genocides (Armenia, the Holocaust, Bosnia), but now? How can we even make sure historians can trust records from our time period?