I’d also like to point out that for the longest time the Roman and Byzantine states taxed land and not commerce. It is not a new idea. In some ways it is an ancient idea. Land value and use is dependent on the climate and success of farming. It can be volatile, and while land may have an intrinsic value, the earnings to pay the tax can be highly variable (I.e. a drought).

I don’t think this is the best idea to solve tax issues in the modern world