This REALLY sounds more like you are the problem not your teammatesPlaying with idiots on your team is extremely difficult because they are a level of intelligence apart and will mass report you for not being in team fights with them 3 levels down wiping over and over while you are playing for win conditions taking forts and soaking.
One of my Hots account is on a 3rd strike (next one is apparently a perma-ban) for "hindering the team" when in fact I was the only one playing for the win. Appeals don't get answered, you will eventually be banned the longer you are teamed with idiots. I am looking forward to my perma-ban simply for playing the game to win.
However, coming back from the last temp-ban things have somewhat improved this season, but for the first time ever I have turned off team chat because this is often used as evidence in reports.
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The weird thing is one of my temp-bans was because of repeated failed attempts to reconnect to a game with the dreaded "Desync" error. The system saw it as afking out of the game 7 times in a row and banned me that day.