Explain

So I've won 5 in a row being a real cheesy player with cheese comps in bot. I know the game is wanting to make me lose judging by the more and more stacked enemy teams. First it was just the silver scrubs like me, then a lot of goldies.

Now what I want to know is why I was matched with a first time ranked player on my team against a gold 4 jungle. Why is a new player even near this MMR? Why are new players not started from the bottom?

Its both unfair to me, my teammates, and the new player who gets smashed and demoralized by someone 2 divisions over him.