- there is such a thing as the commons;
- there is a cost to the government to protect your rights which is much higher for land than "virtual" assets and the cost to investors ought to reflect it.
Commons: I like that Singapore, for example, is taxing drivers around $90,000 per 10 years for the privilege of riding a car. The air is much cleaner and streets freer of traffic. Both of these were damaged by too many car owners. Similarly, the supply of land is limited whilst population can grow ad infinitum, creating ever upwards pressure on land prices.
Cost: in terms of individual rights, the army, police and justice defend your right to own that land free of damage, spurious lawsuits to drain your resources, land grabs by powerful men, and foreign invasion forces. This forms the basis of modern society and the implementation of your individual rights. The cost is proportional to land area but not as strongly correlated with company size in the equity case (you might have a few more problems but not proportionally to market capitalisation, and they involve court cases rather than policing, with most of the high costs - lawyers - born by private parties).
In theory, any land owners ought to be taxed, however, I make an exception for one's primary home (tax residence) considering that all citizen are naturally short housing (they need a place to live) and buying a home puts them in a housing neutral position and also has many positive effects on the commons (people are more invested in the future of their country if they own their home, less likely to move somewhere else, etc.).
Vancouver is a great example of citizen who have created ideal conditions for home ownership by participating in building a peaceful, prosperous economy which respects individual rights. Foreigners have accordingly swarmed to take advantage of the fact they were not charged for the benefits arising from ownership.
This has caused citizen - beyond the first generation of land owners - to be penalised for having built their own country up, as they end up unable to afford to live in it, burning up valuable income into paying high rents and house prices. A tax - which should offset what Canadians would pay elsewhere on productive activities, like income - is one of the best way to correct this imbalance, by charging the cost of enforcing individual rights to those who benefit from it.