And highly palatable means processed foods are easier to consume in large quantities.

So it's not just an issue of chemical composition but how we respond to these foods behaviorally.

A 7.5oz bag of potato chips is made using around 6-8 medium sized potatoes. Eating a whole bag of potato chips in one sitting is frighteningly easy to do. But I challenge anyone to eat 6-8 medium potatoes at once, despite being around the same amount of calories.

Going on a whole foods diet often results in weight loss without any increased hunger sensation.

Sorry but that comparison is nonsense. Potato chips are just fried slices of potato. How would you squeeze 6-8 medium potatoes (each weighing 5-10oz according to top Google result for "average medium sized potato weight") into a 7.5oz bag.

Potato is 80% water which is vaporised in the frying process.

Simply observing a correlation in the wild is not evidence. Spurious correlations occur all the time. Even if it's a true correlation, that doesn't imply causation - they could both be unrelated results of some common cause.

You need something more rigorous than "there is a correlation" to support something that important.