We should all have go bags and a plan in the event of needing it.
It’s better to be part of a group who look after each other than be a lone wolf.
JWs are actually very good at this. Perhaps the best international organisation at looking after their own.
They are almost always the first in with aid and the last out after rebuilding work.
Or if the situation is so bad that you have to leave your country then you will have those related to you in the faith ready to welcome you into their homes in other countries.
This is a good reason to stay physically in, even if you are mentally out or agnostic.
Similar to the Hospital liaison committee being such a help and you getting better medical care and being so well looked after with lots of visits and help if you go into hospital. Many stay physically in for these benefits even if they are agnostic as to if God exists.
They don’t feel so alone and they feel safer with these trained brothers talking to their doctors and the doctors feel they can’t take so many short cuts on JWs as they are being checked up on.
If it really comes to that need blood then take it rather than dying, but you generally get better care if they know they can’t just pump blood into you so easily