Why exactly is that absurd? So when somebody breaks into your house what are you supposed to do? you could hide and let him do whatever the fuck he wants, you could call the cops, you could confront him in a non threatening way, you could hold a gun to his head and tell him to GTFO, you could shoot him to wound, or you could shoot him to kill.
all those are legit options, but really the options that do not involve a gun seem the most risky to yourself. you never now what someone breaking into your house is trying to do, it sounds fucking retarded to just assume that he only wants your TV and wont harm you, thats a pretty risky assumption. If someone breaks into my house, and threatens my safety, i only care 100% about my own life, why the hell would i be thinking "gee this guy could kill me, but i really dont want to harm him, so ill just sit here and hope he wont"
depending on the situation the safest option may be to point the gun at him and tell him to get out, it may be to kill him, you might have 10 guys with weapons, in that case the safest thing to do might be to run, either way, your focus will and should be 100% on your own life, and having a gun/using your gun gives you many more options and much better odds.