The decentralized system will be no different. All your hopes and dreams of tearing it all down will leave you with nothing but a bunch of rubble fighting off people who will come to do to you and yours exactly what's already being done in a much larger fashion, and, in the end, you will kill their children too. That's just the nature of the beast since man's been on this planet, you are not going to change that, it's in their nature.