HOW DID I LOSE

In my recent game with viktor I did most damage out of everyone in the whole game and the rest of my team did 1/5 of my dmg and fed on every lane with every lane having 10 deaths except mine and then the whole enemy team was fed. Yet I was the only one sidesteping dodgin skillshots, positiong well while everyone kept on suciding like runnning into blitz hooks or just face checking a bush. I had also most cs out of the whole entire GAME.

So why did I deserve to lose, Why,In my silver game why am I matched with people in that have obviously never played league before while the other team has a full team of people slightly skilled but in or people played before. How are we the same rank when there is such a huge skill gap. Why do people from unranked have to go to silver and not bronze usually. Why cant we have everyone start in b5 or future wood 5 that we dont have such one sided games.