I dunno even if there is no you in a metaphysical sense the deconstruction method still ends your personal subjective experience of being you which sucks. Sure the next you might be just as much you as the first one but you don’t get to be around to enjoy that.
But it doesn't and that's the point. You are not the collection of atoms that make up your body, YOU are the software program that is running on your brain-computer. The software program can be transferred (or copied) and you are still you. There is no "you" outside of that software.