why aren't you being a toxic fuck to that guy and making him regret waking up in the morning?
Because my version of toxic would get me banned quickly. I just try not to say anything when people like that are in my games otherwise I'd get perma'd.
Plus I've accepted that Riot are never gonna bother doing anything about autofill, just gonna make people play shit they don't want. Good game where the creators try to make it so you don't have fun by making you play boring roles.