Not to be that guy but u have been demoted 3 times and u only now start to do your staff duties when u are no longer staff.... Yes he was racist and it's not acceptable but for the point about u being staff maybe stop trying so hard as it's truthfully unlikely to get a 4th chance.

A warn is necessary for this or even simply a verbal since it appeared he was a new player and maybe next time simply contact an admin or any kind of staff and it can simply be solved