If Apple makes phones using kids, buying an iPhone makes you implicit. Despite western narrowed vision. That's not your example.

Your example: If one iPhone was used as a hammer to bash a window, when you make a call, with a different iPhone, you're implicit. Which is wrong.

The idea is criticizing where you put your money. In companies that exploit children, and actively build our generation's "9 out of 10 doctors smoke" mentality, or elsewhere?