Banning system needs to be stricter

I'm a bronze player, hoping to get out of his miserable division. I was at 100lp, hoping to win my promo games and get out of bronze 2 and progress to bronze 1. However, out of the 8 games that I played today. More than half of my games were filled with toxic/afk players that were not resilient at all and would also not work with the team to try and make a come back which was truly possible. Why haven't riot introduced a similar banning system like CSGO? In csgo, by leaving the game and being disconnected for a certain amount of time, the game will give you a ban simply because you disconnected and did not reconnected in time. I won 1 game, only because the enemy adc (Varus) gave up and left the game. This sort of attitude needs attention, and by letting a player go and not give them a ban simply because they rage quitted is not fair at all. I went on a huge losing streak, I wasn't feeding or giving a negative attitude. Now you might be thinking, what if it was just a power outage, a real life issue/accident, or an unstable internet connection. Well, by encountering these issues, you cause the enemy team to have an even higher chance of winning the game, and by doing so, you make 4 people mad and 5 people happy because they gained free lp from your teammate leaving the game. The first ban should be 1 hour (which seems fair, if you have a power outage, etc.), and if the player leaves the game or decides to give up, grief, or flame teammates, they will receive a 48 hour ban, then a 7 day ban, and then a 14 day ban. If the player continues to pull that attitude towards their teammates, he or she will receive a permanent ban. I lost more than 70lp from those 7 losses. How can I progress to high divisions if I get teammates that flame and yell at each other or just int and go afk. Does anyone else agree on with my argument? Leave me your thoughts.