> wouldn't the fibre just have become part of openreach anyway
The issue was the subsidies. The fiber plan wasn't going to be profitable then or maybe ever, so it was dependent on tax funding that competitors wouldn't have access to. BT had to become an economically rational company which meant tossing not only the fiber stuff but around half their employees too. Building fiber and then giving it to OpenReach wouldn't have helped BT become competitive.
The issue was the subsidies. The fiber plan wasn't going to be profitable then or maybe ever, so it was dependent on tax funding that competitors wouldn't have access to. BT had to become an economically rational company which meant tossing not only the fiber stuff but around half their employees too. Building fiber and then giving it to OpenReach wouldn't have helped BT become competitive.