How would anyone be able to have such a security force great enough to threaten the well armed militia that most people are trained and encouraged to participate voluntarily in strictly internally without an outside influx of capital or military force ? Why would I have to threaten the militia ? I ' m just defending what I claim as mine . Regradless , while reading this I realised your original statement is bullshit . The problem being that , a society that views hiring someone as granting them property rights is incompatible with private property . Your society would view not giving them property rights as a violation and use necessary force and threats to enforce your views , so private property would indeed be illegal .