Those deduction in no way change the basics of income (and sales) tax, which is on revenue, not profit. A person that has a good wage will pay a significant amount in tax even if at the end of a year they have no more wealth than before it; i.e. no profit. And while of course there _exist_ places that don't work this way or don't tax real estate that doesn't diminish the fact that there exist places that _do_ work this way - which demonstrates the fact that there's no broad agreement that taxation must be limited to and occur after profits. Norwegian self-proclaimed entrepreneurs aren't unique in their "victimhood", which seems to be the angle of the original article.

Consider a though experiment: In a fast-growing world, taxation limited to profits when honestly applied and without exploitable loopholes (not an obviously satisfied precondition) might be able to cover costs of shared concerns, i.e. government's primary business. But imagine for a moment that that growth were to significantly slow or even stop - without profits, taxation could fall to a trickle (limited to those niches that have zero-sum profits yet lack the ability to amortize over loss making periods and lack the ability to strike a deal to fiscally merge with a loss-making business for tax purposes). Clearly, that's not sustainable. I think it's hard to imagine that the the only "just" way to tax is one that is fundamentally dependent on permanent significant growth, even if we've been lucky enough to live in such a world for quite a while, at least on paper. Given how some costs (e.g. depletion of natural resources and pollution) aren't on the fiscal books, and that from an idealistic free market stance one might prefer to include those costs on the books, the true global growth is surely already lower than it looks on paper, even if it's still hopefully positive.