Of the first point I shall plead Wittgenstein and not speak, but as regards the second: In what way are photons, the medium of wireless telecommunication, not physical particles? In what way are, indirect connections not decomposable into multiple direct connections (broadcast vs. point-to-point is a more robust difference, I agree)?
For QC to work, the receiver must receive the exact same photons the transmitter created. Those photons can not be tampered with, what means they can not be relayed, or reflected by most surfaces.
