You ignore that it's physically impossible to put a flagship performance in an under 5 inch format. Under 6 is already a challenge. The battery alone scales with size. The camera is a physically space occupying bunch of glass and sensors, that even the ultra size phones have to put them in awkward bulges outside the phone main body to deliver the kind of qualety demanded by users.

Your demands are irrational and it's precisely why the manufacturers don't bother anymore. Bunch of drama from a perfectioninst segment that's smaller than 5% of the market at best, who never buy anything but complaints all day and night that their specific unrealistic demands are not met. This is not the way man. To have nice things you have to learn to compromise.

The compromise of the iPhone 13 mini were reasonable and it was still a high performing processor which could do the same things that the big brothers and the battery still lasted almost a whole day. The camera was equivalent in quality as well. It was praised by everyone and their mother as an achievement of modern engineering putting that much power in such a small form package. And almost no one bought it. End of story, get over it.