"He created a new slot in the soft metal by hitting a flathead screwdriver with a mallet into the soft metal of the bushing head. With that new slot, he muscled the bushing out of the hole."
This is one for the story collection,Mr Sutton up there indicated heating it up
( Iwould've used a heat gun) and extracting it with an EZout,elegant yet simple.
I bet your tradesman did it as a favor and he didn't charge you,did he?