Polarization-based photonic quantum correlations can be traced back to the overlap of the polarization Stokes vectors on the Poincaré sphere between two polarization filters. Quantum-strong correlations can be obtained with independent polarization states on the Poincaré sphere. The quantum Rayleigh scattering prevents a single photon from propagating in a straight line inside a dielectric medium. The concept of quantum nonlocality is rather questionable because the quantum Rayleigh scattering in a dielectric medium destroys entangled photons.