In summary, while populist presidents tried to juice up the GDP based upon the economical equivalent of a sugar high, if the $5T dollars that vanished due to the CRA and its related easy loans, were instead invested in new technologies, (not just alt. eng.) the US might be in better shape today. Houses nationwide might be worth 20-30% less to the chagrin of housing investors, but the growth would have been sustainable.
Those who object against huge social engineering practices by the government stating that often the achieved effect is opposite of the goals have been proven correct.