I agree wholeheartedly with your post. All the "survivalists" here yapping about their generators, livestock, stores of food and ammunition and whatnot are going to be among the first to die in a true TEOTWAWKI situation.
It's one thing to brag from your keyboard about how you will sit on your front porch and mow down would-be looters with your automatic rifle. It's quite another to actually do it and think you are going to get away with it. Eventually you are going to need some sleep or you are going to run out of ammo Then you will be overrun by the hordes with their pitchforks and torches and whatever is left of your "stash" will disappear down the throats or be carried off by your killers. And if you leave behind a wife or kids, they will soon be dead or wish they were.
Not a pretty picture but that is the reality. Now don't get me wrong, it's a great idea to be prepared to ride out a short-term disaster such as a hurricane, an earthquake or an extended power outage. I have myself a good supply of flashlights, batteries, firewood, canned goods, bottled water, candles and a generator ready to go - so if I lose power for a week or so, I'm in fairly decent shape. But anybody attempting to ride out the apocalypse by filling their cellars and sheds with years worth of supplies are wasting their time and money.
For when the crap hits the fan and you end up being the only one around with lights on at night and livestock running around the place, people are going to very quickly be beating a path to your door and word will spread around like wildfire that you have stuff worth stealing and it doesn't matter if you have a private army of snipers encircling your place 24/7. The well-stocked compound you spent so much time preparing will eventually get overrun by the hungry and desperate masses, even if they have to climb over a stack of dead bodies to get to you.
So that said, what is the best way to prepare for a TEOTWAWKI event?
Learn as many specialized skills as you can. The more services you can provide to a society forced to start all over again, such as carpentry, general repair, doctoring skills, rudimentary dentistry, etc., the more valuable you will be and the less likely you will go hungry as you will be able to barter these specialized skills for food and/or shelter.
So, what do you do when you run out of your one week of supplies?
The smart FReeper folks aren't going to tell you where, when and how.