What I'm trying to say is that social mobility will be severely stunted.
We can agree that the reason for owning land is to make money, yes? Planting crops would take a couple of months to return the initial investment. If I planted a forest it could take years.
If this investment possibility is removed from everyone without (massive amounts of, if the tax is high enough) capital it's going to create a further wealth gap for no apparent reason.
> Finally the poorest cannot afford to own land anyway so are not affected by the land taxes.
Yes, this is true for the poorest, bad phrasing on my part, but it is going to make the barrier of entry higher.
Also: land produces goods that everyone need the same amount of (food, wood, wool), this would increase prices in a way that wouldn't really bother the capital heavy but would seriously hurt the already poor.