Son, the gross domestic product is a farce, ever since it's creation in the 1940's. The economists then never intended for it to be the gauge of economic progress that it has come to be today.
Why?
The GDP is only a measure of everything bought and sold. Nothing more nothing less.
So long as population increases, the GDP will increase. It's really that simple.
What we need to look at are the underlying factors that make up economic development.
When health care costs increase and oil prices rise the GDP increases, but this does not necessarily indicate a benefit.
If we chop down trees and pollute rivers, the GDP goes up; if crime increases or more single parents are raising children, if the costs of education increase, the GDP increases?
Also, more money can accrue in a smaller percentage of the population -- less in a larger percentage --- and the GDP will still increase.
Mouthing off about increases in the GDP is a fool's game.