I'm 100% against property tax. That does suck. Still, you get tossed out of your home, and not tossed into prison. or killed. It sucks. It's immoral. It's theft. But the original question at the top of this thread is should you be able to sell yourself into slavery; as in extreme restriction of movement, labor and choice.
Should you be able to say, "I will give you all of my labor and travel freedoms in exchange for food, shelter, or x for the rest of my life .. until you decide to kill me .. which you can also do"