When is matchmaking getting fixed?

I mean I know my skill level didnt magically drop to bronze 5 after being high diamond last season and I do good every single game so I dont think I can pull the blame on myself here. I dont know what the game wants out of me when i literally do everything in the game while everyone just feeds with their hands on their dicks. Just so disgusting matchmaking can be this bad just because of dynamic que. Im sure you cant win them all but come the fuck on, id blame myself If I played like shit in games I won/lost but no its either whole team feeding,3 players feeding or one player afk/intentionally feeding. 0 inbetween besides the game I hard carried vs two smurfs. And that was only because my team was extremely bad and I needed my last promo game so i somehow magically still carried.

went from a 75% win rate to a 58% win rate. And when looking at the games I did the most every single time way above what any other player that belongs would have done and still lose. Sure im not playing my main champions that im the best at but im still doing 10 fold and losing which means it doesnt matter who I picked.