See alot of people complaining about Unranked players in their ranked games
Unranked is not the bucket category used to define all unskilled players. Unranked means just that, unranked. The system has a good idea of their skill level but it hasn't been properly evaluated in serious ranked matches. This means that an unranked player can potentially be any tier. They could be a Bronze scrub who has a normal mmr that reflects Gold tier play or a Diamond level player who plays for fun with friends of lower skill in normals and has a Silver mmr.
The point is, stop acting like unranked players are just trash players. They aren't any worse than you, they just aren't classified in a tier yet.