How many of the PARTS involved in any electronic device do either Canada or the US actually make? Probably not many. I work for a company that makes power devices...power supply or power output. We even make our own class 'd' amplifier module. But, we make (mainly) 1 part, the power transistors / FREDs (Fast Recovery Epitaxial Diode) and some other minor stuff. The boards have dozens of components, most Asian and some European.
For that matter, how much of ANYthing is made in only 1 country. I'll bet that even the glass needed for a vacuum tube's envelope is imported by most of the countries that still make tubes, let alone the specialty wire/ feedthru.
No single country actually makes or fabricates anything, but rather ASSEMBLES others parts.
I agree with Peterayer.........what ever happened to NAFTA??? Yet another bill of political goods?