Yes, it's been suggested that all scarce inputs to the economy should be taxed. And yes the idea of Georgism is to let market set the prices and tax based off of that.

It does become complicated when the scarce inputs are things like highly specialized labor. Georgism wouldn't tax that monopoly, though our current systems (progressive income taxes) do. Many people would want a system which penalizes businesses for buying up e.g. all the veterinarians in a city and charging monopoly prices.

> Many people would want a system which penalizes businesses for buying up e.g. all the veterinarians in a city and charging monopoly prices.

As powerful as taxes are to create change, you don't need to use them to solve every problem out there.