Trust is a fundamental part of human social reality. It is a requirement for interaction to go smoothly.
If you deny that free markets can include the lubricant of trust so you can promote a theory for government being necessary, where violence in favored instead of trust, you have chained yourself with a straw man argument.
Not only does the aggression of government violate trust, it actively promotes distrust. Do you trust people in power? It is rational not to.
Underneath the cover of liberty lies the individual willing to trust if trusted.