Your initial claim was about the situation being just. This argument explains why and what situation we have, but you've done nothing to explain why it's just.

Your initial claim was about the situation being just. This argument explains why and what situation we have, but you've done nothing to explain why it's just. "Raise another army or pay the price" is hardly a ringing endorsement of the fairness of the system. The key thing to note is that this isn't the only model of land ownership possible. There are other that are more fair (land value taxes and community land trusts for example). To be clear, I don't really have anything against individual landowners; it's the system that's unjust.