Care to provide any evidence for this? Since you're going against even the explanation for the RE sunset, I assume you must have some.
What the ?
The RE model's Sun set is explained by the rotation of the Earth. There is no optical illusion in this.
The only optical illusion in the RE is when the Sun is near the horizon (which exists, you can't deny this, unless you're blind) and it sets or rises faster then it does in reality because of the air that changes the trajectory of light (same thing that when you look in the water, the distances are changed : same thing with air, and this is approved by about all scientists in this world).
You're so blind that you won't even hear total evidence. When something in the RE model (which is based on REALITY) can't be explained by the FE model, the first excuse is "an optical illusion" and the second is "a conspiracy". At least you didn't say that it's a conspiracy, but I have hear some FEers saying that the horizon was a large poster.
If you arguments are based on "is it true that 1 plus 1 equals 2", then what can I do ? Open your eyes and you'll see.