Then you will see Americans stop crying about immigrants. We have a history of doing this. When the economy is bad we complain about immigrants but when things are good we don't mind them coming.It's quite humorous that all you have is personal anecdotes which are, more than likely, not true.
Hmm.
About - Laborers' International Union of North America
LIUNA members are on the forefront of the construction industry – a sector that is a powerhouse of 12 million workers producing 5 percent of our countries’ economic output.
I have no idea what the link was for.
Housing Rebound Stymied by Spot U.S. Labor Shortages
Construction contractors warn of a labor shortage as building booms
As construction heats up, so does worker shortage
I'm all for closing the borders. If we need ditch diggers, selectively let them in. If we need engineers, let them in. If we need rich arab business owners, let them in.