I don't really have a problem with the smaller widgets and UI fonts (and neither do the 10 Million people who have bought iPhones so far, I know this argument is flawed, but oh well..). All I care about is being able to use my laptop for work, and with the current 13" displays it's impossible.
I love high resolution, too. On Windows and IOS. But IOS is resolution independent, and MacOS is not. A lot of Mac users above the age of 40 are grudgingly running their screens in "blurry mode", at a lower resolution than they are meant to be.
Most applications do not offer an opportunity to adjust UI fonts either.
Who knows, maybe Apple gets around to resolution independence in a couple years? Then we are going to see "retina" displays in all their laptops.
On the other hand, I do not understand what your problem is with 13". Apple offers two size above that if you need them, and you can always connect a stationary 30" in your office or home.