Re: So the mechanism that mean to stop unauthorised changes to an app does not *work*
Then buy a sim-free/payg phone.
Then network can't futz with your phone if they have never touched it.
Want a subsidised phone rather than forking out 4-600 quid? put up with the bloat.
Incidentally in my experience where you can't remove stuff you can turn it all off and even remove the icon from your apps list.
Our Samsungs and HTCs certainly seem to allow this.