Game over for my headset? The bearings are jammed in it.

My headset needs a new bearing. But the old ones are stuck in the headset. It’s properly jammed. Probably with rust.

So far I have tried
– sticking a screw driver in the gap and trying to leaver it out
– covering it in WD40

I’ve managed to pull the rubber seal out of the middle. But this hasn’t helped.

Is there a way of separating them? Is there some trick I haven’t tried?

Or is it came over for this headset?