You don't have any obligation to put up with toxic players

If someone says some rude comment, mute them, because chances are they won't ever say anything useful or polite after that, the tilt lasts for the entire game and for many other games until they stop playing or get banned. Don't bother trying to reason with them or lash back because you can then get into trouble as well and all you are doing is wasting your time playing a part of a middle school drama where you should be focusing on the game such as last hitting minions and dodging skill shots.

Most communication from teammates is usually either flaming or affirmation, you don't need it as much as focusing.

Thank you very much and have a nice day.