Why is this game so very much bad, ? :DD just curious

Hello dear summonners! I've been playing since s4 , and i am very much impressed by how bad it has been getting every season! Worse every year! i think its very interesting how even if you play like a challenger player, all it takes is 1 player with very little knowledge about the entire world, to lose the game! i think its very unfair, and makes it almost impossible to climb, since so many people love to int or afk! thank you very much for your answers people. see you next time on the summoners rift!