[shaklee3]

Those don't exist in the iPhone either, so I'm not sure what you're arguing for. There's a reason most flagships don't have those anymore.

[rxhernandez]

I haven't heard a single good reason beyond the manufacturers' ambitions.

[rimliu]

How about this: most users do not care. The only thing I used from what you mention was headphone jack, but with iPhone 7 I got Beats X and all I can say: good riddance. I will argue that for most iPhone users whatever earbuds they find in the box are good enough. SD cards? Why would I want that…

[izacus]

You forgot about Samsung Galaxy devices, which have all of that and are the most successful mobile phones right next to iPhone.

[dragonwriter]

Galaxy S and Note flagship lines actually had dropped removable storage several generations ago and recently brought it back.

[kajecounterhack]

+1 those few reasons mostly being water resistance (headphone jack) and compactness (everything)