Photos -> Export unmodified originals
Calendar -> Export as iCal
E-Mail -> IMAP anyway (and most people use gmail anyway)
iTunes -> Stuff you bought is .aac without DRM. Music subscription can be cancelled every month
Personally I'm mostly using google services, some of them in parallel to Apple's (i. e. Photos, Cloud Storage) and some exclusively (Gmail, Calendar). I could switch any day. But I use computers professionally and lack the time to debug kernels to get audio or sleep or networking to work. And I lack the tastelessness to spend the majority of my working hours with a tool made from cheap plastic.
And believe me, it irks me that every platform now expects me to buy the same Beatles album over and over again.
What are you taking about? We've had DRM-free music for a long time now.