I can't see where in your scenario people can exist in greater freedom, since you say that 3D printing technology promotes such. The dependency on centralised supply systems such as energy generation, water supply and mass food production would, in my view, remain even with 3D technology, except perhaps for communities living outside the big cities. For autonomous communities that are off the central grids (which I believe is the prerequisite for more free-spirited living), not only would the autonomous supply of food, energy and water be necessary, but also the integration of children and elderly parents into these communities so that those who, for example, cannot yet or no longer work, remain in their midst. Such communities living and working together in larger numbers requires the ownership of land. This land must be of a certain size to provide the necessary conditions for energy needs and food.
The central systems such as social security, taxation, etc. do not allow exit, and because they do not allow exit, people cannot decide to split into self-sustaining smaller units because their energy tied up in the central systems means they have no capacity to organise themselves locally. They simply lack the time and money as well as the know-how to create a version of freedom. I think the most striking point, moreover, is that they do not even recognise or know how to live in greater freedom and accept that the large systems should and may both provide for them and dictate the rules of coexistence.
I am therefore not sure that we are both talking about the same premises, on the other hand I also think that the intervention of the powers deep into the life of the individual is neither right nor good. How, apart from total reliance on the rulers, with whose decisions a large part of every nation seems to agree, does the consent of the masses to further centralising intentions explain itself?
The communities forming or living outside the central networks would have to be released from their grip, I cannot imagine it any other way.
Hence my scepticism that technology alone makes such a thing difficult to imagine. Psychological and pedagogical considerations are also necessary.
In a country as small as Germany, with limited possibilities to appropriate pieces of land large enough for the many in a community to work together, I see bureaucracy and legal possibilities as the biggest problem.
How do you relate to that?