I appreciate all the opinions posted in this thread. I am going to make one last post then become simply a very interested observer. That last post is a (philosophical) question.
Is there anything, ANYTHING you would not do for your family?
Thank you those who were willing to give advice, and to the trolls, well, I'll leave you in your cave to do your thing.
Like I said in my response, the problem as defined, given the accepted notions of the conditions of a collapsed society, does not have a solution.
A Chartered flight being the only reasonable solution, is there money for this?
A 2 way cross country trip using ground transport does not bear a reasonable expectation for success.
Without your Sisters enthusiastic cooperation in prepping effort and a willingness to relocate, your effort to save her would be a net loss for your family.
Trolls are a rare occurrence in these parts. Brutal Honesty much more common.