I don't believe all taxes are an infringement on freedom. A tax on natural resource consumption, and to a lesser extent, immovable property within a state's jurisdiction, can be morally justified in my opinion. I also don't have a problem with a head tax, conditioned on the punishment for noncompliance being exile, rather than imprisonment. A tax on private transactions is an infringement on liberty in my opinion.

On that note, it's interesting that the first 'War on Drugs' used taxes on private transactions as its avenue to prohibition. Since the government at the time didn't have the Constitutional authority (this is before the Supreme Court was utterly corrupted by politics) to outright ban drugs, what it did instead is require that all targeted drugs pay a stamp tax, and then simply refuse to issue the stamp. This shows the prohibitive nature of taxes on private transactions.