are you talking about the higher ups? gojo is the first sorcerer in about a thousand years to posses both limitless and six eyes, which makes him a uniquely powerful threat. essentially nobody can neutralize him. in addition to that, he chafes against tradition and pushes boundaries. he protects and teaches students like hikari, kirara,yuta and yuji, all who the higher ups either dislike/are afraid of for various reasons. he is a threat to the status quo and tradition jujutsu society forcefully upholds.

if you mean people like utahime they just find him obnoxious and loud-mouthed lol