speciality as necessity

After 19 plus years of nursing, seems I have worked myself into neer unemployability.
Nursing has become very specialized, requiring certificates for every area of practice.
I would recommend to all nurses to not stay too generalized. Just keeping updated on CPR and ACLS proves to be of little value to most employers now adays.
I have been trained (as an outpost/community health nurse) to do extensive history/physical exams, deliver babes, suture minor wounds, immunize adults and children, even diagnose and prescribe for simple illnesses. I have had management and supervisory positions where I trained, taught, hired, worked on policy and procedures. Yet after 19 years people are telling me I am under-qualified. I am even not qualified for working PostPartum.
It sort of feels like a nasty kick in the teeth. Afterall, havn't I been working on a BN? Yes, but I have yet to have that paper in hand...;.it makes a huge difference.