Its possibly worth looking at our local line, Hull - Scarborough. The service is 1 tph all stations Hull - Bridlington and 1thp Sheffield - Scarborough which runs semi fast between Hull and Bridlington, I haven't included Seamer and Scarborough as these numbers also include York - Scarborough services
Usage for 2021 - 22 is:
Cottingham 161,946
Beverley 518,028
Arram 738 (sparse service)
Hutton Cranswick 31,934
Driffield 212,082
Nafferton 27,220
Bridlington 442,558
Bempton 18,076
Hunmanby 36,834
Filey 153,574
On the OPs cut Bempton and Arram would be closed.
Lets consider Bempton, its my my local station (10 mins walk), so I will declare an interest, and it will probably pass the 20,000 mark within the next year or two anyway. However I also know quite a bit about how its used. The usage is generated by the local population of the two villages which is c1000 people and visitors to Bempton Cliffs. So if you close it you save a little bit of money on upkeep, its one platform, a ticket machine, PIS and a shelter, and maybe 2 minutes of journey time. You lose the revenue, not sure what that is, the cheapest journey would be Bridlington on a railcard maybe £3, a lot of journeys to Scarborough (it the easiest way durng the school holidays when parking is at a premium) and some longer journeys, for example London, Sheffield, Peterborough, Marne-La-Vallee as a few we've made over the last 12 months and a neighbour visits chldren in Birmingham by train on a regular basis (once/twice a month).
So thats 18000 extra car journeys on the local roads each year, and how many of those would be lost to rail altogether, I am going to say all the Bempton Cliffs visitors (because of geography, its too far for most people to walk to and from Bridlington), and half the rest, with the half that are not lost driving to Bridlington or Seamer to begin their journey, so thats lets say rail 12,000 journeys lost completely.
To me that is not the direction we want the railways to go.
Dont even mention buses. Until they are properly integrated both for ticketing and connections, regulated and can compete on journey time people will use their cars if the trains dont run, bear in mind the areas between the major centres which are Beverley, Driffield, Bridlington and Filey are rural, nearly every family has access to at least one car, so car will become the prefered option.
Arram is an oddball, I suspect it survives because it is the closest station to RAF Leconfield, and should that become busier Arram would be useful. It currently gets an almost parlimentary service, but I suspect it is retained for 'strategic' purposes.