Losing access to Chromebook is an interesting case. Where did we go so wrong that breaching particular point of AuP causes our own hardware to become inaccessible?

People rally against zealous lockdown of PC (recently restricted boot in EFI, earlier TrustedComputing in general). Not being able to install any software of choice (with reasonably little effort) sure is bad, but having an already functioning computer swept right from under your fingertips could easily be way more damaging. Government couldn't do that without serious due process. Why a company can, and why aren't there voices of stern protest?