Solo/Duo fillings issues

Bad players getting punished by getting banned caused by my reports but this sadly doesn't make it any better since there are hundreds and hundreds of other toxic, feeder and troll players, can't the system be up tp the, kills, deaths and assists instead of the MMR of the winning rate? it makes more since because when people lose because other bad players in their team their MMR gets low while if you applied my idea the MMR will be about CS, kills, assists and farm so the filling in solo/duo ranked games won't get affected negatively if the player played well on his on even while losing games.
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