im banned permanently becuase i get mad at my team

I get banned cause I say mean things about my team when they do not wish to cooperate, or are generally rude to me and how I play. I'm sick and tired of being the only one on the team who wants to win and when I say something about it to my team they say I'm being toxic, and I call them out on how bad they are, I believe I do not deserve to be banned because of my team, but if I deserve to be banned because of some offensive, arrogant prick team, then by all means riot. ban me...