Share of the world's GDP is a flawed metric. It tells us we're getting a smaller slice, but it doesn't tell us if the pie grew or shrunk. If the EU grew by 50%

Share of the world's GDP is a flawed metric. It tells us we're getting a smaller slice, but it doesn't tell us if the pie grew or shrunk. If the EU grew by 50% while India and China became 200% richer, then on paper the share of the world's GDP would be dramatically lower, while everyone would be better off. I don't disagree with the sentiment you expressed at all though.