Having done as... careful a Googling as I could, I've got some vague numbers.
A ton of coal will generate about 2500kWh. A coal plant will burn 1.4 million tons a year.
A single human will generate 100-150kWh. Average human weight worldwide is 62kg, so you get 16 humans to the ton, and 1600-2400kWh per ton of human. You'd need to burn somewhere on the order of 25 million humans per plant per year to keep up.
I'm not going to work the numbers any further than that, but I'm sure you can all extrapolate.
At this point I think most of us should be exercising our Second Amendment rights. By which I mean purchasing guns for self-defense, of course. If we let them hold a monopoly on assault weapons, we just make things easier for them when they start going around doing pogroms.
They talk about how the only thing that can stop a bad guy with a gun is a good guy with a gun, and maybe they're right. Only problem is too many of the good guys don't have guns right now.
Have to say, as someone who recognises he lives in a very fucked-up country which has become borderline unrecognisable over the last six years, I’m absolutely dismayed at the regularity of mass shootings in the States. This isn’t right or natural or inevitable. This shouldn’t be allowed to happen almost as a regular and accepted part of national life in any developed country.