wtf are you talking about???????
MMR is completely different.
Player A has 50% win rate and 2000 MMR
Player B has 50% win rate and 2000 MMR
Player C has 50% win rate and 2000 MMR
These players would be in a match together because they all have the same MMR.
Player A has 35% win rate and 2000 MMR
Player B has 50% win rate and 2000 MMR
Player C has 65% win rate and 2000 MMR
They still get matched together, but now the win rates are different.
Player A does not equal Player C
Player A is much worse than player C
A will go down until its win rate is 50%, C will go up until its win rate is 50%.
The difference could be a division or a whole tier.
But Riot algorithm thinks Player A = Player C.
This is unfair matchmaking if you are player C.
Tell me where I am wrong in this