80% of games are won in champ select

This is only true for you because you quit 80% of the games you play at champ select. 0% of your games are won at champ select, unless the enemy team AFKs immediately in champ select.

Games are decided by which side gets the most tilted players at champ select .

People will queue up while being tilted , they'll make a bad play eventually and tilt even more and feed even more etc etc .

OR decided by which side gets the troll .

You know usually guys get autofilled and denied his main role , so he'll play a first time champ and play for fun . That's how you lose game most of the time in diamond -> Autofilled , tilted players or both at the same time .

Just pray that they re not on your side