Dear Declan,
I read your paper with great interest, being somewhat familiar with the issues of photon entanglement experiments. As you know, these have been difficult experiments, subject to measurement and interpretation bias, which claim to prove that entanglement is real.
I understand that you assume an angle-dependent detection efficiency, which may be reasonable. This could be an important result. But for completeness, the analysis should also indicate how sensitively the agreement depends on the particular selection of parameters.
On a more general note, entanglement is central to quantum mechanics, and should not be all that hard to prove. The difficulties suggest that something is seriously wrong.
Furthermore, entanglement is central to the power of not only quantum communications, but also quantum computing. Quantum computing in particular has become a major research engine internationally, with both major corporations and governments investing billions of dollars. Skeptics are being ignored and suppressed.
Given all this investment, I predict that this entire enterprise will fail within about 5 years. Only after that occurs will the mainstream be willing to consider alternatives - namely, that entanglement is an illusion, and the foundations of quantum mechanics are built on quicksand.
I address some similar issues in my own essay, "Fundamental Waves and the Reunification of Physics".
Best Wishes,
Alan Kadin