"Clearly"
It doesn't take a gun to defend your home. It doesn't really take training, if you can walk around in the dark, without running into things, half awake, because you know where everything is (Or should be, not counting the odd lego brick the cat was playing with.) Then you have the advantage over anyone that shouldn't be there.
I see a lot of bad advice on Gun channels. I'm a gun owner, I have them locked up in my van, which is outside the home, because that's where they are most secure. I also have a plan to defend the home if I'm here, when someone tries to get in. It's part of my mindset, after living on the streets so long (Over half my life) it's part of Having a home.
You don't need a gun to do that. A gun doesn't make you any safer, being trained (By the US Army) in shooting doesn't either. It's the mindset, awareness of where you are, what's around you, what belongs, and what doesn't. That's how You defend Yourself, and Your home.
One of my pet peeves is "The ultimate in home defense is a 12 gauge." First of all, breaking open shot-cups, and throwing lead around 9 balls at a time is a great way to Break stuff. Your stuff, your room mate's stuff, punching large holes in everything isn't real good for the home you're trying to protect.
Another pet peeve is not even mentioning Hearing Protection. Have you ever shot a 12 gauge indoors? I have, with hearing protection. You can hear it with your Skull, through the headphones, even with Boze Noise Cancellation by bone conduction. (A 12 gauge blank is equivalent in explosive power to a commercial Blasting Cap. In fact, you can use one to set off Plastique, which is stable enough to burn, and stomp out without detonating it.)
So, why does the Ultimate Universal Advice on defending your home, not mentioon Protecting your hearing (And your family's) from the shotgun you bought to protect you? No mention of Gun Safes. The gun is supposed to protect you, but not even going to discuss keeping your Guns Safe? I know this is so llong that You're probably not going to read all of it, but someone else might, and it's important. The reason why you are more likely to be killed, or injured by your own guns than need them to defend Your Self is because we talk about needing guns to protect us, and not protecting ourselves, from our own guns.
It doesn't go without saying. If you're not going to go to the trouble to learn about guns, and gun safety, don't bother. If you won't talk about gun safety, don't bother telling people (Not just me) who practice it how Inturders in our homes would be safer if we didn't have them.
An intruder in my home is quite likely to be Tortured until the cops show up, but I probably won't kill them. I have absolutely no intention of shooting them.