Your argument against governmental theft itself is a form of cognitive bias. The Government is an entity formed by the people themselves. Therefore, it is the people that are responsible for the way the government functions. If the people elect corrupt officials and have a disdain for those working in favor of the truth, then what do you expect the government would function like?
Its not the concept of a philosophical state that is questioned, but rather the people running the state.
I'm not going deep to argue here as to why a state should exist, but simply state that a form of governance has played an integral role in all societies since antiquity.