Exactly - some people like big screens some like small screens. Some people's needs are best suited by a small car, some people's needs are suited best by a large truck.
In the end I don't care how they do it - put an A9 processor in a 5C, 5S or shrunken down 6 case, just anything. Charge me a premium for it, but I just don't care. Otherwise its bye bye iPhone for me.
The problem is there isn't an other option. If there were 4 inch android phones I would be very tempted to swap, but they don't exist.