Stop considering the individual components of a piece of equipment for a unit that can be repaired. It is the wrong layer of abstraction.
In modern electronics a single electronic component has long stopped being the unit of repair. If your electronics gets fried, you change at least the entire circuit board. Personally I rarely get electronics repaired. Rather I will replace.
The new unit of repair is whatever not requires human intervention. A modern phone is assembled by robots so the entire phone is cheaper to replace and get a new phone you know is working. Instead of risking the uncertainty of getting a non-fixed device at unknown human hourly wages.