Americans constitute 5% of the worlds population, yet we consume 24% of its energy.
Please stop using this bogus comparison to imply that Americans use more than "their share" of the world's energy. The correct comparison is between inputs and outputs. The USA produces nearly 20% of the world's GDP. If your 24% is correct, we have room for improvements in energy efficiency, but we're not nearly the energy gluttons that you're suggesting. The low ratio of population to energy use is largely due to our high productivity.
Shesh, nope. First, what tax subsidies are you talking about? There is no way Coal is subsidized, nor is oil and gas.
Do a little research. Here's a starting point.
It's going to be cheaper to make electricity by natural gas for a LONG time, especially over solar.
That depends on how bad the fracking earthquakes get.
I'd rather be a marauder. What's an good apocalypse without them?
I am reminded of the words of the notorious pirate Bartholomew Roberts: "...a merry life and a short one shall be my motto."
It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.