If 3D printing isn't kept open source there's going to be laws about what you can and can't print that will kill innovation.
I can't imagine the printers being open source or not mattering for that, nor can I see any reasonable government banning printing of specific things. If something is illegal to own or manufacture, that already applies to 3D printers just as much as it did to CNC machines or any other method.
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The bambu printers haven't been open source.
Why would some law being passed depend on open source? If anything, that would push some senator to regulate even harder.
Doubt it
2D printers are not open source and you can still print pretty much anything
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