You are putting your personal feelings regarding threats in an argument on treatment of our enemies. If someone broke into my house, tried to shoot me repeatedly (maybe even wounding a family member), and I cornered them & they surrendered? Well, I would have to think long and hard about not shooting them point blank in the heat of the moment. That is different in how we tell our guys on the ground to treat the enemy if they find someone who has surrendered and is in their custody (even if that person shot their buddy).
We all want to protect our family, FlyingRock and stop any threat on them. That is different from military policy; especially one that would create more enemies than it would get rid of.
Oh, and I say fake.