I did grant your hypothetical though? If Facebook and Instagram software was the primary, and root cause of the distress that caused someone to commit suicide. I still think it's misleading to say they "literally killed". The value in that distinction is exactly that misleading.

Reusing my planters nuts example. If planters nuts is "literally killing" people with their peanuts; the solutions will fit around that premise. How do we stop plantars from killing people. Contrast peanuts are responsible for the death of people. How can we stop people from dying to peanuts?

If you still reject that argument because I'm not conceding the assumption of responsibility enough. Then I apologize for misunderstanding your argument/question. And I can answer why I can't grant the charity. it's because it is so divorced from reality that I lack the context to speak intelligently. The amount of things that I understand about reality would have to change so drastically in order for a software application to literally kill somebody leaves me without the ability to reason about it logically.