A 3D printer, chip fab, or CNC mill isn't useful without feedstock, designs/models, and electricity. So even if every household had a bunch of micro-fabrication

A 3D printer, chip fab, or CNC mill isn't useful without feedstock, designs/models, and electricity. So even if every household had a bunch of micro-fabrication devices the government could still regulate whatever they pleased by regulating access between your property and the outside world. If everyone had a 3D printer and was manufacturing things the government didn't like then PLA/ABS/resin would quickly become regulated.