If you cannot speak English...
Then you shouldn't play League of Legends (unless its in a regional language). How is it bad, or "racist" to ask people to communicate in an internationally accepted language that we can all understand. No, I don't want to see you swear at me in your own native languages when I'm playing, thinking that I do not understand!
This really has to stop because it breeds toxicity. It is unfair to your own team if they cannot understand any vital information. I just do not understand why people get called "racist" for this because it is not, we just want a language we can all understand. Most European Nations can speak English (all within the EUW region) so its just demeaning and rude.
It is becoming a real gameplay issue that needs a fix.