So what do you do? You've got 6000 posts in this thread talking about these displays being awful and unacceptable. Then there is the rest of the world, outside this forum, that don't seem to have these problems.That’s great if the only display you ever look at is your phone. In my case I use the 12 mini next to my tv, computer display and laptop, so I am constantly reminded of the awful green tint when switching back and forth between devices. Never had this problem with any of my previous iPhones.
Based on people's experiences in this thread, exchanging for a new iPhone has a very low chance of getting something "better" since they all seem to be pretty much similar.
If it were me, and this was a big issue to me, I'd look at phone alternatives to see if other manufacturers make something more acceptable to me. Going on and on in this thread for months seems like an exercise in futility.
Maybe, someday, Apple will "fix" this "problem" and everyone here can say their endless posting was not futile. I doubt that day will come.