What I'd like is for a company like Apple to provide me (and others) the tools & APIs we need in order to take advantage of that integration, without locking us into their UI paradigms. I would like everything to Just Work™; I wouldn't mind a Macintosh laptop; I would hate to be stuck using the macOS UI.

A lot of what Apple really does is hardware integration. Let me use the hardware to run a free OS, and also take advantage of the excellent hardware integration. Let me use a free operating system, StumpWM, emacs and some nifty APIs which let me talk to the integrated hardware system.

Give me, in the words of Steve Jobs, a 'bicycle for the mind,' not a tram to nowhere.