I'd say "Welcome to Pennsylvania" because you're looking at that situation anyway once three separate vollie BLS companies fail to crew, which happens quite often. If these services were paid (which they aren't largely due to tradition) we wouldn't have that problem now.
Funny that you should bring that up. I don't know if this has been addressed before, as this thread is quite long winded - I've observed that volunteer FD's and ambulance squads on Long Island NY have been 100% volunteer there, with the exception of Nassau County PD EMS. NCPD staffs their EMS division with consideration to the availability of vollie EMS. Suffolk County had no prior fire based or PD based professional EMS.
Over the past decade or more, the vollies have had increasing difficulty in staffing their EMS units, particularly in the daytime, since members need to work a job or two to stay afloat nowadays. The volunteer FD's have been adding paid medic fly cars, and the Town of Rockville Centre has a contracted out a 24/7 dedicated 911 ALS unit with the North shore LIJ CEMS. The town guarantees the CEMS a certain amount of revenue. Any shortcomings in billing will be offset by the town. Any revenue over the agreed upon amount goes to the town. Not a bad deal, something for some areas to consider. I'm not sure if any other vollie FD's have any paid rigs, but it will come to that sooner or later.
My dept was 100% volunteer at one point. Now it's like 1%. Other surrounding counties started out the same way, but have been progressively shifting from vollie to paid by varying degrees. I know that our systems are fire based, but I'm sure that similar scenarios are in progress with vollie single role EMS.
So, it appears that these vollie organizations are actually providing paid positions in a progressive fashion. Dur to financial constraints, the community will typically staff only what's needed with paid personnel.
This increasing shift towards paid personnel is likely the norm across the country. so, vollies aren't stealing anyone's job. declining participation in many areas will ultimately result in replacement by paid personnel.
Stop whining about vollies stealing your jobs. these individuals are willing to help their communities basically for free, and ask little in return.