Exactly what you said ^.
Andy to answer your question, 15 guys I flown with as an FO who where furloughed legacy (twice for the UAL ones). Not one took the recall. Then again in fairness most of them are in their 50s now and making well over 300 living in base. How many fos have left you ask ? 3 that I know before the new contract. 1 after.
As far as the support you speak of goes, it won’t do you much good when the music stops and numbers 11000-14000 get furloughed. Honestly I think most people will be fine who got hired last few years at any legacy or (U)LCC. But I wouldn’t put my eggs in the legacy basket right before the music stops. Then again that’s me. With 30 years left and almost half the list below me I’m happy