This is essentially a new form of luddism. The world is moving forward, with systems evolving by consolidating, grouping and analyzing every aspect of us, our world, and the things we do. Centralization is the answer to so many of our world's ills. Everything from crime, to poverty, to inequality, to disaster-relief. You name it, they can all benefit from a centralized store of all of humanity's knowledge. That is the entire point of the web: connected and cross-referenced knowledge.

Fighting that is fighting progress due to fear. And blanketly decrying "centralization" of data because of the fear that it may get lost doesn't address the problems. We should move our society forward, but we should do it while solving the individual security concerns piecemeal and as they happen.