That's why they're going all-in on mandating infrastructure that requires centralization. Because you're right: a lot of their desired policies (like not traveling so much and staying closer to home) have a tendency to encourage localism and stronger local in-group preferences.

But if you're also dependent on the electric grid that they can cut you off from, and you can't grow your own food because they can shut you off from the water supply, and you can't just buy fuel for a generator because either generators are illegal or you can't buy fuel, then it becomes much easier to tamp down on that sort of thing.

Of course that assumes they can keep the wheels from falling off the global just-in-time supply chain this plan requires, and that's not a forgone conclusion.