Firstly, I apologise for not responding to you, I didn't notice you're response. On with the show!
"You don't need to be telepathic to tell if an unarmed intruder is there to hurt you." Sorry, try again. There are over a dozen different places a gun can be hidden on one's body. If you're saying you know for sure whether or not a burglar is packing heat and prone to violence, you're flat out lying to cling to your anti-gun beliefs as hard as you can.
You're correct, there's lots of ways to hide a weapon. The funny thing about hiding a gun in your pants though, is that it is pretty hard to shoot someone if its still concealed. I'm not lying, obviously I can't guarantee a person who seems to be unarmed is actually not carrying a weapon. If the weapon is not in a person's hand though, it is pretty safe to assume they don't intend to use it.
"There's a good chance they aren't there intending to hurt you." A good chance? Oh, that would make me feel so much better as I watch someone fumblefuck around with my belongings in the dark. If they see me, there's a GOOD chance they won't hurt me!
If you own a gun, and someone breaks into your house, you're welcome to hastily go to where you have responsibly stored your weapon, get it out and point it at the intruder who still has their gun or knife or whatever concealed. You can't pull that trigger unless they make a move for their own weapon though. The funny thing is though, if you're not carrying a freaking gun, they probably won't bother going for a weapon. You're not a threat to them. You showing up all gung-ho with your prized firearm, that's when the situation gets dangerous and someone is likely to die.
"Let them do what they came to do." I have never seen something so absurd in my life when it comes to gun debates.
You as a member of the public do not have the right to punish someone, certainly not with death. Even a criminal you have caught red-handed has the right to due process and people universally have a right to life. You can call it absurd as much as you like, you're entitled to that opinion, but I don't want a country where we pick and choose who has rights and who doesn't and give the general the ability to act as judge, jury and executioner.
"You just can't shoot someone unless they are a threat to your safety or your family's, which they're not unless they try make an aggressive move towards you or point a gun at you." Yes, you can. By the time they've pointed the gun at you, you're dead. By the time they've reached into their jacket or their waistband, you're probably dead. That "aggressive move" you speak of 10 times out of 10 is not going to be a playful pat on the ass. It's going to be a knife or a gun. Castle doctrines exist for a reason: there's no way of knowing whether or not an intruder is packing heat. They've already endangered your life by BREAKING INTO YOUR HOUSE to begin with.
Perhaps you can in the US where there's a messed up gun-culture, but in the vast majority of places you can't. As far as the PCNation is concerned, it's not actually been determined.
Now let me explain something to you in simple logic. If a person breaks into your house intending to kill you, you are probably going to die. Unless you sleep with your gun, if someone breaks into your house fully intending to kill you, by the time you've fumbled around and found your gun, you'll probably be dead. Especially because even in a society with gun-control, plenty of people will have guns of their own.
If a person breaks into your house intending to steal, they don't want to shoot you. They want to take your shit and get out. The situation doesn't become dangerous until you get out your own weapon, without knowing if they're even armed to begin with.
You want a fallacy? A fallacy is assuming that you as a regular, normal human being have the right to enact lethal retaliation against someone committing a petty crime. Maybe you're American and have grown up in a culture that equates protecting property to self-defence but this isn't the US. I cannot fathom how you can claim to be averse to guns, but be okay with shooting someone for trespassing.