Sorry. But if someone is breaking into my home at night, I have no means to judge their intent. As far as I'm concerned, you forfeit your right to life when you choose to break into someone else's home. You're right on the relative riskiness of gun ownership, but that's irrelevant to this conversation. We're talking about incidents of shootings of home invaders, not whether it's a good idea to own a firearm in general.
I'm sorry, but I have no problem with home intruders being shot dead. If you have so little concern for the safety and well-being of others that you would put their lives at risk in such a brazen way, you deserve whatever consequences you receive. It's instant karma.