I had a friend from korea who used to stream regurly who was in gold.
This was the main difference I noticed that greatly improved the games.
They were willing to actually work together and acknowledge it is a team game.
They were also more willing to take calculated risks and even pulled off insane turret dives.
Yes, they are better, it is a culture thing.
Americans are simply egotistic brats.
We are the worse out of all the top tier countries, worse then eu, worse then china, worse then korea, and that is simply because we are egotistic brats who frown upon hard work.