The Single-Tax makes the left-right spectrum look like irrelevant. For example, how can it be in between them? Equal access to land is more equality than communism offers and zero taxes (besides land) is more individual freedom than capitalism offers.
So is it further left AND further right at the same time? A better way to look at is like a cure that doctors don't want to provide because they would have no more patients if they did.
The classical "laissez faire" economists were advocating this, but we are never told about "the land issue" and we are taught "neo-classical economic theory," which says land is just another form of capital. So capitalism is just landlordism. The property ladder is neo-feudalism. That's why we have the same tax system monarchs used. And most people are just mobile serfs.
And communism is based on the false belief that capitalism is free enterprise. Because if it were, that means the economy needs to be controlled. But freedom is not our problem. That's why regulations can't end poverty.
Poverty is unnatural in the first place. Consider this: the left-right battle is between equality and freedom, but how can we be free without equal access to land, everyone's daily source of life? Equality and freedom can ONLY be allowed us simultaneously.