Player Ego is too much

TL;DR ARAM Ornn upset no one does what he says because he is "SIlver 1" and better then all of us

The ego of players, especially at lower ranks, in this game is the most fragile and unwarranted thing I have ever seen. The just rage and whining that occurs in any game mode, even ARAM, when they are not doing well or they say something that someone doesn't agree with is astounding.

Last game was an ARAM where m,y Ornn had the fragilest ego I ever saw. We were doing pretty bad, at 4 minutes it was 13 kills for the other team and we had 5, 4 of which were on my kha'zix (which was fun, but I am a bad Kha) and the Ornn starts saying we should just afk because "they out scale us" and "there is no point in playing this out, trust me." I and 2 other players (Neeko and Kalista) disagreed, saying we scale fine and just need to start playing better and we can still win. The dude proceeded to immediately flash into the enemy team and die, then afk in spawn for the next 10 minutes while raging in chat about how "all of you are bronze if you can't see this is lost" and "1v1 me after this, ill prove you are all shit" and when no one accepted his 1v1 challenge (I just stopped typing after since there is no point in talking to him now and I assume the other 2 did the same or just muted him all together). He raged all the way till 5 then tried to surrender, failed 2-2 and he went off about how everyone is r%%%%%ed and should never p[lay this game if they are going to be this bad (keep in mind that at this point he has been afk for over 10 of the 15/16 minutes and is currently 1/5/1 saying all this). Then we eventually lost since it became a 4v5 and he went off in lobby chat about how his team "was talking shit the whole game" and how we "wasted his time" and "the game was over in champ select."

I just can't understand these people. What does queuing for a random game mode then raging instead of playing because it didn't start how you wanted accomplish? Even more what does then trying to lie to the enemy team after about how badly you were treated when you were the one yelling at everyone do for you? Do they think the other team cares or will do anything for them? Its absurd....