Earlier quoted context omitted.
Could this become like other cheap, easy to manufacture societal disruptions like drugs - solution being: make them illegal.
Someone should write a book set in a science fiction dystopia where you have to apply for a specific permit to construct any device or write any software (lest you make a drone or a singularity AI), and where machine tools are carefully controlled and limited to regularly inspected industrial facilities.
Something like RMS' story, The Right to Read?: