Look, a water glass! Now I destroy it with a hammer. What are the odds that that particular water glass would be re-manufactured and "live" again? Zero. What is the likelihood that that particular water glass was manufactured in the first place? One. The manufacturer made 1000 water glasses that are "duplicates" of my water glass and can make still more. What are the odds there will be undestroyed duplicate water glasses just like the one that I destroyed? High. What are the odds that they are the very one I destroyed? Zero,
Again, each VW is a separate car, even if it is identical to thousands of others. If I crash it, I can get a replacement that seems to be identical. But the car I crashed is gone. Identical does not equal the same. Two things can be identical, but can never ever be the same thing. Same idea for "sense of selves." You want to claim a magical different "self" in the original and in the copy of a person, while we are saying that we would have two separate, but identical selves in the original and the copy. Maybe this helps: we are claiming separate, but identical selves (senses of self) and I don't think that is how you are using the term different.