Why this game is toxic? Explanation
This game is toxic because is played mostly by people with a toxic mind.
Describing toxic players:
They hate themselves.
They have no jobs and they play this game for 6-10 hours daily and of course after so many hours your mind isn't coherent anymore.
They are addicted to this game and they just sleep and play LOL for countless hours. Of course with such a lifestyle your mind is destroyed. You are in another world lol.
Also the game is created to be a compulsively activity. You do the same thing over and over and over and over again and again and again and again with different champions but you always press 4 buttons for hundreds of times in every game waiting for that moment of pleasure when you hit your abilities in a "professional" way. Also for the first 10-15 minutes you just right click and last hitting or moving around like pro players ( don't forget to right click every 0.5 second) . Another bad design is that the matches are long and if you are addicted to this game waiting for that moment of pleasure and the moment doesn't come for 40 minutes you start to rage, troll or teach your team how to play because you have countless hours of playing time and some useless ranked achievement so you are an expert in LOL.
When they play with their friends who are as toxic as them, most of the time toxic players act cool with each other even when they play bad because they are real life friends so their identity is known. On the other hand, when their identity is unknown they are at their 100% of toxicity. They don't care about what they are doing because nobody will ever know who they are.
So if you are wondering why this game is so toxic just look around with what kind of people you share your time in this game.