Don't you think that has anything to do with the massive number of illegal immigrants that arrived in the last 10 years? There is no question that illegal immigrants drove down the wages of the average non-union construction worker - my father was a contractor, and I've seen what's happened in the construction industry since he's been gone. What about landscaping services? Also driven down by a huge number of people willing to work for much lower wages than their predecessors. Decreasing supply of labor should have increased the value of laborers and increased their wages; instead we allowed our borders to be violated by tens of millions who would increase the supply of labor and DECREASE their value. Both parties joined forces to allow this, but the democrats are better at pinning the blame on the republicans...
Don't you think that has anything to do with the massive number of illegal immigrants that arrived in the last 10 years?
I think it more likely that the wholesale off-shoring of what were formerly high-paying jobs is the predominate factor. Read 'The World is Flat' by Thomas Friedman.