Therefore the only apparatus of state power is violence. Near or far, somewhere down the line, state power in enforced, not by social power or voluntary association, but by the threat of violence. Therefore, the state exists and is perpetuated by violence or the threat thereof. It is either explicitly violent (as in the case of police/paramilitaries) or implicitly (IRS).
In fact, the State holds a monopoly on "legitimate" violence.
Violence is evil.
Therefore the State is an attempt to monopolize and legitimized what is evil.
Whether it is better to have a small state or no state for the preservation of individual rights is a matter of some debate, but that is a utilitarian, rather than a moral, question
Thanks to Albert Jay Nock and Murray Rothbard, from whom this syllogism was more or less stolen.