I too have a deep abiding respect for all life and the rights of others. Those rights and the right to suck air ceases the instant my rights are being violated. In my state lethal force is authorized in defense of self, others, property, to stop a felony from being committed and to stop a fleeing felon. We live out in the sticks. If the police were called it would be an hour before they got here if they left immediately and could find the place. No one would hear our screams. Our property has perimeter alarms, motion sensors and video surveillance, with the video stored on an off sight server. Our home has been hardened to resist small arms fire. Lines of fire and ranges have been established. Trespassers should think in terms of "Deliverance" when entering our property. Post SHTF the same rules apply except that our perimeter will be two miles from our house at a choke point in the road and enforced by those that live up on our hill.
That said the only time anyone has ever trespassed is two groups of religious fanatics from the city, one group Mormon the other Jehovah Witnesses. Both times they were greeted at gun point and surround by three 125 pound aggressive breed dogs. Both times they called the police after they were allowed to leave. Both times the police would not enter my property and called me to come to meet them on the road which I did. Both times after the trespassers told their story the police informed them I would have been well within my rights if I had shot them dead, that they had committed a crime. By their actions confirmed that their intent had been to do me and mine harm. Each time the LEO asked if I wanted to press charges. The Mormons shut their pie holes and became appropriately apologetic. I gave them a pass. The Jehovah Witness was a real bitch she ended up in jail, CPS took custody of her kids.
Post SHTF the same rules will apply. Respect my right to life and my property and I will respect yours. If not I am prepared to defend what is mine. One of the reasons that we bought this place is because it's location. It is surrounded by abundant natural resources and it's defensible. A point that I think many who plan on bugging out to some remote wilderness location that they have painstakingly selected have failed to take into consideration. Is that their precious BOL location is already being used by those that live out here. That it is our larder, our grocery store and medicine cabinet. So while they may see themselves as homesteading survivalists they will be perceived and dealt with as marauding raiders. We are not going to appreciate anyone invading our territory and attempting to deprive us of our resources and sustenance for my family. Once again the "Deliverance" analogy applies. We know them thar hills like the back of our hand and will do what is needed to defend what is ours.