If it's right to ridicule people for buying shein clothes, supporting sexist influencers or spending money on gacha games, then it's also OK to ridicule them for enjoying AI art. It is correct to be against behaviors that hurt society even if they don't have an immediate, direct effect on you. You deserve what you tolerate.
It helps that currently it's overwhelmingly dogshit, the linked video illustrating that quite well, with it being a random collection of glitched out, disconnected images with no soul. And don't get me started on the Suno slop flooding youtube...
Literally every MMORPG targeted at an oldschool/hardcore/PvP oriented audience. Without fail the related comments and reviews will be littered by people angrily ranting on how these games are outdated and should change to be more casual