I know nothing is indestructible. That’s why I made the “it doesn’t exist” joke.
What I’m trying to get at is this: I’m not much of a “weight weenie” and would rather put my bike budget into durability and reliability, but it’s not always easy to tell how much of that is in the overall build quality.
I’ve seen a number of discussions on these forums about specific issues related to this question. E.g., about whether a wheel with a lower spoke count is just saving weight or is made with better materials; or whether more expensive group sets are stronger or just lighter (and maybe even less durable). But I hadn’t seen anything evaluating complete bikes, or particular manufacturers, as especially durable, even if at the expense of weight.