Some might say that if someone buys an expensive life insurance policy, the probability that they will be murdered by the next of kin goes up. Or that if you buy a nice car, the probability that it will be stolen goes up. But that doesn't mean that anyone should be prevented from buying a nice car or a life insurance policy.

Issues of rights and justice need to be handled on an objective basis, and that requires an impartial arbiter to protect the rights of its citizen masters. That ideal arbiter and protector of rights (to life, liberty, and property) is the ideal government. Given the existence of even an imperfect government such as our own, the right solution to kidnapping is twofold: first, encourage the government do its job, which is to provide the conditions necessary to live your life without worrying about others initiating force against you; second, live your life as you see fit, without violating the rights of any other (because to do so would go deeply against your long-term self-interest - in the long run, lying/stealing/cheating/kidnapping etc. are all forms of cutting your own throat).