You got any data to backup this statement?
As far as I remember the construction industry is a lot bigger then the oil patch.
Some of us have road the oil patch roller coaster in our careers and can tell you it's not fun.
Work your tail off just to get laid off when the price of oil drops. or grain, or coal, or minerals, or lumber, or fish or the economy in general
It's not a smart bet to try to base our whole economy on that roller coaster. Our economy is based on resources.
Where does it say that we should be the gas tank to China?
What about future generations after we ship the last barrel out of the country? What about current generations if we don't use our abundant natural resources?