Riot Big Problem with match finder

Riot need to do soemthnig about this quee im plat and i play with bronz 4 why Riot Tell me WHy i play with bronz 4 im go noraml and i see palyers who has never palyed champ before, he ruin my game wtf is wrong with the system RİOT fix this up! if a palyer is gold make him play with gold players, if he is a bronz make him palying with bronz so no one get ruined by this game i want some tiem to delete the game becasue of this quee finder so unregular