Revelation speaks of those who will become believers during the coming tribulation [Revelation 6:9-11; 13:7; 13:15; 14:13]
All on the earth will experience the Lord's unprecedented coming hour [time] of trial and there is no promise to protect any who will become believers except the 144000 of the children of Israel [Revelation 7:1-8]
The tribulation will cause blade runner conditions upon the earth
Not only with the beast and his human followers hunt and kill humans, but those who seek survival will also raid and take stores from others
There is nothing wrong with people living as survivalists today, get out of debt, keep life as simple as posssible, mind your own business, do not engage in the follies of lost humanity, live away from congested population areas if possible, take care of what you have, and be a witness for the Lord by sharing the truth about Hi, and by treating others as you would yourself
This is a good strategy for anyone today, but the coming tribulation will not foster the ability of many to survive for any length of time
A few will survive, but not many