Therefore, people who cannot afford to buy a home pay the nonhomestead tax. (The nonhomestead tax is embedded in the rent they pay.)

Therefore the nonhomestead tax is immoral.

Therefore the MI FairTax is immoral to the extent it taxes the immoral nonhomestead tax. (The embedded nonhomestead tax paid by renters is subject to the MI FairTax and thus the MI FairTax is a tax on an immoral tax.  Not recommended.)