Agreed that we could apply restrictions in trade as part of national defense, especially with weapons, and also agreed that we don't want to get carried away, like supporting the mohair industry under that guise.
I see land ownership going beyond that though, perhaps partly because it depends more on government for its protection and definition.
I don't see facilitating the government in applying legislation is enough justification though.
I don't think I understand this sentence. Perhaps you could fill in the blank for me: "...enough justification (for) _____ though."