I don't subscribe to the idea that UASs will die 5F6B; the system seems merely to be reverting to occasional flying. I don't believe that we will lose many unless we make a mess of the organisation.
But it is entirely possible to do that now (for instance through poor leadership, indifferent reporting standards or an unattractive ground-branch activity timetable) and therefore to lose members. It would be invidious to provide any examples ...