Game is based off of a match-making scale, yet cannot be done right

Twisted treeline, I mean every single game mode, match-making with other players does not always seem to be fair. Quite honestly being gold 5 and playing with silvers does not mean I am a smurf carrying silvers into gold and allows match-making to put me against platinum+ players. I do not understand how easy it is to base match-making off rank instead of this invisible junk called "MMR." Now, if you think I am the only one complaining, i bet even platinum-diamond players get put against some master/challenger players they would not like to face. If you argue "it's a challenge," all I have to say is how ignorant that sounds. How is it a challenge if they're over 500 "MMR" ahead of you? Your invisible system is flawed. Fix it.