When you know everybody within 200 miles of your house, know everything about them, are use to stocking up all your supplies due to availability & shipping problems; it makes it easier. The big thing is that there ain’t 200 people in my entire area, not 200 thousand; that is a big difference. The cold is hard on ya, minus 53 below right now, but I’m accustomed to feedin the wood stoves.
You have some great natural barriers, as well as knowledge of the area and it’s people. Only “undisciplined” fools would attempt taking you on. Isolation can be good and bad. Communications would be critical to know what is going on or possibly heading your way. Deet is your friend! ;-)