In terms of micro economics taxation is an evil, as pushes the equilibrium away from supply = demand. However, it is a necessary evil. A complete removal of taxation would not be to the benefit of anyone else than the extremely wealthy, if them. There are so many projects that are not profitable enought for a private company to go through with that needs to be done. Let's just take hospitals as an example. If they are completely privatized profitability would be the main objective. This would mean that a lot of people would die simply because they aren't lucrative enough customers. In the short term a removal of taxes might offer some more spending cash, but in the long term it dissolves what keeps a country together. So I surely do hope they find new, clever ways to enforce taxation.
I somewhat agree and somewhat disagree with you and your point
And I certainly understand what you refer to. Basically, you say that without taxes there won't be enough money to create the public infrastructure that people of all incomes can use (like hospitals, roads, and a lot of other things). But if we talk about fiat, the government already receives an inflation tax on every penny it happens to print. And it is not a one-shot event, i.e. every penny gets taxed all year round as inflation plows its way. Further, the government is likely the most inefficient structure out there in respect to using the taxes collected. Corruption is haunting every government since ancient times till now. So what makes you think that taxes as they exist today is a necessary evil? It is like saying that the government itself is a necessary evil. It is certainly evil but is it really necessary today?