"AIBU to think that there is something we can all do?"
No, but attempting to visit 'it' on anyone else on your terms and timescale, in a pandemic and 2 lockdowns, is pretty unfeeling and short-sighted.
I don't think we have really got an agreed description of resilience here yet, have we, other than something that sounds like the lines of a 1940s song (and we wheeled all those out back in May so we've probably been there, done that for this year). I also think that it must be a very personal thing and that sentimentality around resilience semantics is only helpful so far.
Perhaps it's the question of how you live through what is not your doing, that which you have no choice but to face. For some that might be loss of health, family, business, security, education. For others, not being able to have a social life when they don't see why. I have also found that this happens sooner or later but that the earlier something overwhelming hits your life, the more easily your resilience 'battery' can run down.
What would you think of the role of resilience in a case where a young soldier returned from a tour of duty in a war zone (Iraq period)? He'd married his wife, both mid-20s, and had 6 weeks of life at home before going out. When he returned it was as a heavy drinker who would fly off the handle if a car door slammed in the street. Does she LTB, mumsnet? No. She is in fact grateful he lived, came back.