I just had a offlane yurei get rolled by offlane maco.
My yurei was bronze and the maco was gold.
Maco was able to take first tower and rome the rest of the game while our yurei never put a dent on their tower.
a bronze can be a new player, a really lost player, or even a troll why should they ever queue against someone gold that has proved they have at least decent mechanics and game sense.
Every time they (the gold player) are going to exploit that bronze player to get a win.
it never a fun experience for anybody on the team with the bronze in a mainly gold game.