Riot, Please make League of Legends GREAT AGAIN!
It's not hard, just make reporting system easier to punish toxic players.
Make it simple,
Tag those players that received 1 reports, 2 reports, If a player gets 3 reports within certain time period, shut down his/her account permanently.
So these players aware that that they must not make any toxic/cancer plays in game and try their best in action instead of talking trashes, and also allow other teammates to be aware of these players.
What do you think?