Is being able to do something is better than being able to do nothing? You're saying it isn't.

hoping that maybe enough people hear about your case and are motivated by it enough to change their spending habits even in the face of monopoly and violent threats isn't exactly "being able to do something" as a vigilante's bullet passes through your skull.

False premise. The idea that this will work better with a market solution is laughable.

Your description of how a market solution to policing might fail is how government policing already does fail.