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Heartlander I sometimes wonder about some posts here. Do you pose rhetoric questions on purpose, or do you really not understand how a democratic republic works nor how taxation works. First, if private equity invested in infrastructure and housing, there would be less need for governments to support such. But, private equity does not see enough return on its investment. Often then, government offers to ac abatements which do tend to lower the cost and make the investment more attractive.
As to the money returning from government, to OU realize that some states and local government do levy their own taxes, which are controlled totally locally. Part of the tax law passed by the Trump administration limited the tax deduction for local and state taxes essentially making many taxpers pay taxes on already taxed dollars. As to the fund, aka taxes, paid to the feds, a significant does get returned to the state of taxpayer. A big "problem" is that it is dold out unequally. Some states get more than a dollar back for every dollar paid, some less. You would be surprised at the distribution.
As to the regulations involved, most are for health and safety of the building workers and then occupants. For example multiple family houses now must have both fire, smoke and carbon monoxide detectors, but also fire suppressing systems. True, those add costs, but improve safety exponentially. It is finally illegal to use asbestos in buildings, that protects the worker while building construction, and occupants later. Who should decide what regulations to enforce? Left to itself, we know the history of private industry.