League of broken matchups.

Can anyone explain to me why singles are matched vs premades in ranked and this is called fair? Yet premades are boosting each other and thats ok as well. How such games are fun for simple single players simply put they are not. If suposingly premades get stronger oponent team to play against then being a single player with premades will punush you harder.I think this is why we see these days games lost with high discrepancy sometimes even 40/10 or more. I am amazed that nobody noticed this and nothing is being done to balance this out It would be noce if single could choose to be matched vs premades or pay simply alone in the ladder on fair rules as it used to be. Id like to ask premades to not participate in this conversation as its clear that games caters to you. I am worried about casual single players that are being used as canon fodder here.