It is a better idea. Most people would rather a thinner phone with a camera bump than a huge, heavy slab with none.
You're in a small minority. Most people, including myself, don't want worse cameras on their expensive, premium smartphone.
Most people don't care.
You're in the minority.
You're in an extremely small minority
An iPhone 16 Pro Max made thicker to eliminate the camera bump would be a heavy, massive phone. This is a terrible idea.
Most people do want better photography, it's one of the largest drivers of phone upgrades.
I'm not sure where you are getting your data that you are so certain
I suspect you are completely wrong