Yes, you would have thought that "education and retraining" should be the fundamental part of unemployment. But it's not, it's on job seeking.
Lets say you were a "coal worker" and you've been doing that for 25 years. When your pit closes the only thing you're good at is coal minining, but no other pits are open, so you now have a defunct skill set. Yet you still need to eat, pay rent, support a familiy so you no longer have a chance of retraining, but as you started working at 15 you don't have an education.
As your skill set is not transferable, the only jobs you can get are less robust ones - which means you'll be in and out of employment for the next 20 years until you retire, stacking shelves, picking fruit or whatever else you can get.
And capitalism itself needs a % of unemployment - if that unemployment isn't there then there is no opportunity to get new people in place.
Maybe you can wait until the people 10 years older than you retire - excepct there is no enforced retirement now so those positions that would have been forced open are no longer there, and even ifthey are why would someone employ an ex coal miner when they could get a straight out of school graduate that is at the same level as you ...