Toxic players

I encountered a lot of toxic players while playing league of legends 1 of them one of the most toxic players challenged me in 1 vs 1 game he didn't say until nexus and i killed him first after i destroyed his turret or one of us hitting 100 CS then he started flameing more about me being scared after loseing in a fair match of 1 vs 1 i admit i was toxic but now i am not because i almost lot a friend for being toxic. Now where i am is Christmas and i have a wish: My wish is to make League of Legends a game without Toxic players i hope it will come true.