why do i lose lp like a normal match when i have people who leave

this is a problem with the current ranked system, it does not matter what happened in the game other than a win or loss.

the current system takes the average mmr of players on each team. then you get or lose lp at the end base on your mmr compared withthe enemy team.

i have now been demoted twice from silver 2 to 3 because i get 1 to 3 games with a LEAVER, because afk is not a correct term, they leave the game.

why is it i get punished more when i lose with an afk, why does the system not check and recalculate the mmr at the end of the game. ?

furthermore why is it i have to suffer when i have such a person?

riot you are fixing ranked champ select pls take a look at your ranked system and do these changes, because it is not fun and now im less likely to get to gold, because two games that i should have won i lost because of LEAVERS.