Bringing "Refusing to communicate" back as bannable offense?

More and more players expecially between lower and highest league (DIamond 5-2) Are extremly stubborn solo players which eventually lose the game trough things that arent punishable like ignoring the entire game as bot is being pushed by 5 enemy teammateS for example, or by simply giving up on game saying they dont care and proceed to play that way too. How to clean up these playerS? how to solve this kind of problem ?
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