AFKers seriously need to uninstall the game

It's getting really frustrating playing a game with one just rage quit when only 1 or 2 mistakes. I'm so pissed to the point, i felt like punching these players for afk the game. Even reporting them at end-game will do nothing, so does submitting ticket....RIOT might as well banned them for good if that is the only solution rather than giving them a slap on the hand for repeated afk.
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