EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something to add.
I feel like here you’re just moving the goal post again, if you’ll excuse the expression :)
Even if there is no superposition in which an observer sees both outcomes, there must be some point in space and/or time that decides which of the two superpositions we see. Whether that is in the experiment, in the brain or in consciousness or whatever. I mean we only see one superposition, so there must be something that “decides” (randomly as far as we know) which one it is. And that decision is a kind of collapse of the wave function, no?
I am not a physicist though so this is just me rambling from my limited understanding.