There are too many variables and too many possibilities which could end in you and/or your loved ones dying.
Of course it's not in their rational interest to kill anyone, but what if they're suddenly surprised by a homeowner armed with a baseball bat while they have a gun? They're probably going to shoot and kill the homeowner.
And there is a significant chance they're not in any sort of rational state of mind at that time.
So even if they don't want to kill or harm anyone, they easily may end up doing so due to the circumstances. And then there's the added possibility that they want to steal but would also not turn down the opportunity to sexually assault someone while they're there. And then also the additional possibility that they do intend to harm or kill people while there. That's far too great a risk to treat it as anything but a lethal threat.
Of course it's not in their rational interest to kill anyone, but what if they're suddenly surprised by a homeowner armed with a baseball bat while they have a gun? They're probably going to shoot and kill the homeowner.
And there is a significant chance they're not in any sort of rational state of mind at that time.
So even if they don't want to kill or harm anyone, they easily may end up doing so due to the circumstances. And then there's the added possibility that they want to steal but would also not turn down the opportunity to sexually assault someone while they're there. And then also the additional possibility that they do intend to harm or kill people while there. That's far too great a risk to treat it as anything but a lethal threat.