In principle I believe in stand your ground. If someone is threatening you or your property they should be the ones to back down. I can see rationale for duty to retreat if you argue that anything other than inescapable bodily harm is a matter for the authorities but that kind of depends on the authorities holding up their end of the social contract and actually helping the victims. If they can’t or won’t do that, why should law abiding citizens be required to allow others to violate their rights?