PSA: If you want to win, try asking nicely.
Instead of being a total fuckwad and flaming your team for making mistakes. Chances are if you are reading this, you are probably plat and below. Which means you suck balls, and you have no business telling people how to play. You have no idea what is going through someones head. Maybe they had a shitty day and just want to unwind with some League.
Stop being a dick and pissing off your teammates if you want to gain their trust and bring them together to win a game.