Onelifeletsliveit, I am very sorry that you're feeling so anxious and have health problems. Obviously your viewpoint is very different to mine. I try hard to understand how you feel, so please try to understand me, too.
You make many assumptions. I have no anxiety or panic myself. I'm concerned, of course, but not upset by current events.
I'm in the 'bonus' part of my life, the plain sailing older days and years. The worst has already happened, long ago. Now every day is a bonus and I have no fear.
The whole idea of the WW2 spirit is a bit suspect. It's so easy to be nostalgic about the past. People did not necessarily 'help each other out' in the war. It all depended on who you were - and who you knew. There was a thriving black market then - just as there is again now.
I do know that volunteering and helping others is very therapeutic for the volunteers, too. It helps both ways. Not everyone is inclined or obliged to do it though.
Our government exists to ensure our welfare and safety. Any decent government considers the most vulnerable in society at an early stage of crisis and should act promptly. We can never compensate for inadequate services by relying on volunteers, nor should we have to.
I do hope that you're following the advice to isolate yourself and stay safe. Just wait it out until this phase is over.