> I believe the problem was the deregulation that allowed the creation of entities like AIG Financial Products
AIG Financial Products sold products "encouraged" by regulators.
Regulators realized that there was some risk in securitized mortgage pools. However, they really wanted to be able to call them "no risk" investments so they could push them onto asset sheets and make them more popular among folks who they couldn't bully. (They were pushing cheap housing.)
The regulator's solution was "insurance", which they defined (regulators define what's acceptable for banks to hold as assets) and AIG (among others) sold.
Since "everyone" believed that the securitized mortage pools were "no risk", folks saw selling insurance as "free money". AIG did a lot of middleman work in this area as well as writing its own contracts.
> But there's no way to deny that a LOT of private capital was directed at the building of useless condos.
"free money" pushed by govt policy (through loans and the like) isn't private capital.
> My personal belief is that at the margins taxes have little effect on overall economic growth, especially when they are targeted at the upper income levels
The median worker in the US pays almost no federal income taxes. (They do pay SS and medicare, but the former is an okay investment for such people and the latter will be a train wreck for everyone.) As a result, they have no incentive to get value for money.
Note that the income of "the rich" is somewhat voluntary and fairly portable - that makes it quite volatile. That's why CA gets hammered every so often.