"The whole point of the second amendment... is so we can defend ourselves"

No, it's not. Have you even read your own constitution?

"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed"

There's nothing in there about self-defence. It's so that you can be drafted into a citizen militia to protect the state.

And every time I hear this argument, I thank my lucky stars that I don't live in a country where people are actually this paranoid.

So...the feds holding property they've held at least since 1907 as a wildlife refuge, or surroundings they've purchased since then, and leasing it to people like these at ridiculously low prices is 'creeping into our lives' and 'overgrowth of government'?
Um...yeah...how does that work?
These people committed arson on federal land DURING A WILDFIRE and were found guilty, and are sentenced under federal MINIMUM guidelines, not given the max, and these Bundy people are finding that an overreach of government...how?
The cognitive dissonance in their last statement would be hilarious if it wasn't an actual mindset so many people AGREE with when talking about white groups, but scoff at as self serving drivel when applied to black groups.
THESE people think the law is rigged against them? What should the Black Lives Matter people think when it's PROVEN the law is rigged against them, and it's their LIFE at stake, not their right to do whatever they want on other people's property, including arson, without consequence.
And can you imagine the terrified outrage on Fox if a group of armed BLM (Black Lives Matter) people took over a BLM (Bureau of Land Management) office, like these nutjobs did? Now consider the ridicule if they did it to 'protest' the mandatory sentencing of a convicted arsonist....who's black.

Oh...interesting to find out this as well....
-Many of the tactics and talking points being used were popularized in the 1970s by the white supremacist group Posse Comitatus. This group promoted the “Christian Patriot” movement, advocated the formation of “Citizens Militias,” helped forge an idiosyncratic reading of the Constitution, said the county sheriff was the highest elected official that should be obeyed, and opposed federal environmental restrictions.

Sweet Zombie Jesus!

I'd like to see the formation of a volunteer citizens militia. You call a hotline set up by private donations which disseminates text messages to registered citizens, and they show up with automatic weapons, a lawyer, a copy of the constitution, and a videocamera to ensure that human/constitutional rights are not violated.

Maybe at some time in the past this role was filled by the police force, but that time has come to an end.

Well, as far as the break-in question is concerned, you really can't give a good answer for that.
If the guy came in with a gun, and I was able to get to mine without him knowing about it, then I'm pretty damn confident that I would be able to kill him long before he saw it coming. After all, I know my house better than he does. And I also keep my ammo in my rifle case, which is under my bed, so I'd have that loaded in a jiff.

As for the VA shooting - I think that if one or more students had a gun, then yes, it could have ended a lot better. But no, I am by no means suggesting that students carry weapons to school.

Finally, no, anarchic countries are not well served by citizen militia, because they fear no consequences for any of their actions, at least none that would come from government.