I hope others who have posted constructive and supportive comments here, and those who find themselves in the same situation as me, don't let the person who crashed the thread with harassing notes detract from the discussion.
Lest you be confused by his posts:
1. My goal is to get the display issue resolved. He tried to disrupt the discussion and cause a digression by attempting to define our choices as either (1) selling or (2) returning our iPhones. I think the real choice is (3) getting Apple to provide the iPhone with the specs and quality as advertised, which as you can see from my posted side by side photos they did not, so far.
2. His posted note about the Japan Apple Store return policy isn't relevant because everyone who lives here gets their iPhone bundled in their major carrier contracts.
But the main point, to clarify to anyone who may have been distracted by the last few notes remains the same as it has been.
At
https://www.apple.com/iphone-7/ it says, in addition to the new phone being 25% brighter, that, "...what you see will be noticeably more brilliant and vibrant. Because we all deserve a bit more brightness in our day."
That isn't true with my iPhone 7.
And from other responses here, I see others are in the same boat. Again, thanks for your confirmation. It's useful to know it's not just me.
I'm trying to get one that looks as advertised. Some people have been able to, even if it takes multiple exchanges. It appears Apple has a manufacturing problem with certain batches of the iPhone 7. All I want is Apple to help me get a good one.
<Edited by Host>