I wonder what Apple's reaction would be if China (or another large non-western market) demanded to have root on people's iphones. If Apple said, it's our HW design, it can't be compromised, I'm sure some market with enough heft could come back and say, make one specific to our market or you don't sell here. At that point they'd likely capitulate.
I'd guess they'd downgrade security on clearly-identifiable devices. And that's okay. We lost the moral high ground on mass surveillance many years ago.