Yeah quick question

Someone called my sister who is actually retarded (no joke because that shit is extemely offensive) to go and die. Can they get penalized for that? I was having a very bad game and this neeko decided to say this shit. I'm sorry but everyone is aloud to have a bad game every once in awhile. And the fact that people get that salty to say things like that is super fucked and just over a game. Mind you I muted them after they started giving me shit for not doing well on one game. I think Ima take a long break from league for awhile. Idk how people become this toxic over a game lol. It's sad really.