Refusing to switch😭

Im so tired of having a tank or healer that refuses to switch to something more viable, ive had 2 tanks in a row going up against other tanks/comps that completely counter them. If youre good you can usually play past a counter but when youre doom fist and you keep getting hooked out of LOS of healers and now were down a healer because theyre trying to keep you alive yet you continue to stay doom its throwing. Matter of fact dps too, if im 18/7 as hanzo and our mcree is 7/8 maybe we should play another character instead of just being dead weight. End of rant, im sure theres tons of these threads but I was so close to masters and now im back to D2. This is hell😭