Square versus rounded. Geometry 101.
Cop-out.
You may be stuck on Geometry 101. But in case you haven't noticed, real photographic analysis uses considerably more advanced geometry, and considerably more advanced methods. This is because we've discovered through long and hard-won experience that simple methods do not produce usable or reliable results. There are factors at play that are not accounted for in Geometry 101.
I explained to you the cues that people use to determine contour and edge. I'm not making those up; you can look them up. I also explained to you some of the factors that occur in photography (and in normal observation) to interfere with those cues: illumination, film response, digital compression. There are more, but those are the ones I mentioned.
I also outlined a few methods sometimes used to control for those interfering factors where possible. It's dishonest of you to say no "lengthy treatise" is necessary,
but then to have attempted one of those methods yourself. You clearly recognize that better methods may yield better results, but you are unwilling to listen to people who have considerable knowledge of and experience in those methods. In fact you treat those people with clear disdain. Utterly failed, you've now retreated back to a "I don't need no science" approach.
I pointed to where Jack White thought a "simple" answer was right. He was shown his error, which was his failure to accommodate certain factors of which he was unaware. His conclusion that the control network failed to align because the photo had been faked was essentially demolished by his failure to discover, understand, and account for factors that also properly explained the alignment of the control network.
Your sin is much greater. You've been given insight into the factors. You've been shown examples of them. You've even acknowledge through your own attempts and image manipulation that you believe those factors can be controlled for. Unlike Jack White, you've been given knowledge. Your sin is greater because you explicitly refuse to employ it. The head-in-the-sand photo is very aptly applied to you. You are willfully ignorant of what you need to determine whether your claim is true.
The best answer is not that everyone else is wrong and your "simple" answer is right. The best answer is that you are being fooled (in predictable and well studied ways) by "tricks" of light and shadow. And you refuse to take any steps to avoid being fooled. The fact that you cannot elaborate any method beyond "I looked at the photo and formed an opinion" speaks volumes about where your beliefs really come from. You are clueless and irrelevant.