Comment: Yep.

(See in situ)

In reply to comment: So if an entity doesn't have (see in situ)

Yep.

Those sentences seem to fit. If there is no monopoly, choice is available, and government would eventually lose any contributors. Monopolies never provide good services, nor cheap ones. If they can't initiate force, than they cannot send anyone to jail for not opting out. Eventually no one would pay.