Should refusal to play with team (afk farm until end of game) be considered bannable

I always thought that this behavior was toxic , it's the equivalent of a passive help to the enemy , the guy just go solo and refuse to listen to team util they obviously loose in 4v5 I truly believe this is no more acceptable then active feeding. i have this behavior often , but there are no specific category for this one so i end up going for enemy help + afk +negative attitude. but that's not what it should be. this specific behavior occur too often imo to deserve it's very own report section.
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