Correct me if I’m wrong but it sounds like you and Bob might both be wrong.
Bob says the 2 separate particles can’t be shown to be identical.
You say that the 2 separate particles are shown to be equivalent.
But I think QM shows that there aren’t 2 separate particles. Maybe you could say something weaker, “like this configuration has a particality of 2”.
Correct me if I’m wrong but it sounds like you and Bob might both be wrong. Bob says the 2 separate particles can’t be shown to be identical. You say that the 2 separate particles are shown to be equivalent. But I think QM shows that there aren’t 2 separate particles. Maybe you could say something weaker, “like this configuration has a particality of 2”.