Earlier quoted context omitted.
Housing is already taxed. In the U.S., property taxes are about 17% of government revenue. https://www.economist.com/finance-and-economics/2013/06/29/l...
True. But housing is also tax-privileged in other ways. Most notable is the mortgage interest on federal income tax. More subtle is the fact that the value of the imputed rent from owning your own home is not taxed. I.e. if you rent your home to someone else, you pay income tax on the rent you collect. But if you "rent to yourself" by owning your own home, you don't pay tax on this implicit form of income.
If I own my own house, I do so because I already paid for it. That cost me more at that time than the person who's renting pays in rent. So why should my owning my house be considered "implicit income" because I don't have to pay rent? It should be considered money I've prepaid.
And then there are similar situations. If I've paid off my car, is it implicit income because I don't have a car payment? If I don't own a cell phone, do I have implicit income on the amount of a cell plan?
For that matter, the homeless have lots of implicit income. That's not a useful way of analyzing their circumstances, though.
I feel like the "implicit income" idea has an unstated assumption: The "normal" situation is for you to be paying out every dime you receive, and if you don't, that part you don't spend is "income". I absolutely reject that view. The world is not entitled to my spending.