heres the thing. if you think everyone who says something that critiques you is a negative flamer. you should realize that some people actually want to help you improve and win the game.
if you are so conditioned to think that everything that a person says to you is bad and they want to be mean to you. Maybe you should actually understand how conversation is relayed in real life.
some difficulty in playing is the fact that the Non-verbal cannot be observed so you dont get a true sense of how something is said. this is frustrating and can wear on people who actually want people to play right / to high skill level.
now if you look at the bronze. i know... crazy people that they are... most believe it is the teams fault why they are in bronze and staying in bronze. actually talking to these people i realize that they are easily frustrated and have a lack of game knowledge required to move up in tiers.
a child can get frustrated when they dont know how to say what they want. and that also goes for adults. its actually human nature. this is why i use the mute button. i dont need to be another tilted person on the team.
now stop being a white knight and i doubt you are actually in a position to teach others how to properly human so accept that the language barrier exists and move on.