Hey, thank you for staying polite while expressing disagreement. That's much appreciated.
To the risk it might seem surprising, I actually completely agree that trust is essential to software creation and and use.
Actually I would more broadly frame it as, no trust, no viable sustainable society, no technical/cultural artifact.
But trust and societies can be realized without individualism as underlying chief paradigm.
That doesn't mean total negation of individual though. One alternative, among others yet different approches, can be state as a metaphor of individual like a cell in a social body. Thus the term metastasis, as when a cell starts to degenerate in self centric behavior at the expense of the health of the body as a whole. On the other hand, no cell, no body.