Susan, I concur.
Once survival in a geographic area becomes untenable, it may be wise to relocate. The trick is to have somewhere to relocate to beforehand and have it adequately stocked with items necessary to sustain life.
It is never prudent to be a refugee. They tend to drop like flies in any adverse conditions. Placing your future and safety in the hands of others and counting on the goodwill of strangers is an unwise act.