Uneven teams at start of game

Sometimes when I play matchmaking, I would come across a game where the teams are unevenly balanced and then I have to deal with an unfair game, causing me to leave because I can’t do a thing about. I would wind up in games like a 3v4 or a 6v3. I even had to deal with an 8v2. This is absolutely terrible and I demand it to be fixed.