This is a symptom, not the reason. The reason is the declining income, which is directly tied to increasing and unstable regulatory actions throughout the economy.
Our economy is being strangled by unachieveable “green” requirements, Ocare, EPA regs, IRS regs, etc. Until we get a Congress with the guts to actually GUT the regulatory agencies and strip them of their regulatory abilities, we are doomed to decreasing employment in the primary sectors.