You argument can be resumed to: if you know how to build electronics, have access to the extremely expensive machine needed and have the skill/knowledge to do it; it is easy. Then you go on conspiracy theories rant (WTF ?).
I don't know what your motivations are, but you are so dishonest it is troubling.
Nobody is arguing for companies to make special investment in repairs or whatever. What is asked is simply access to parts they ALLREADY MAKE to build their stuff. So that people can avoid wasting time reinventing the wheel every time they need to fix a small part.
It is not complicated nor a big demand. Companies making devices should have an obligation to put their parts used for building the devices in the open market. There also should be allowed competition on the supply of compatible parts depending on what are the user's priorities. This is something we already do for cars. But Im sure you rethread your tire by hand (equivalent to the battery), and you glue black together by hand all the broken rear-view mirrors. This is nonsense, it is unbelievable how terrible your take actually is.