My understanding is that Earth imports almost 100% of its energy without generating any for export. Would you care to see what happens when its foreign energy supply is truly cut off?
That's true. Totalitarianism is a function of ideas. And other factors, of course.
Like geography. Earth does not have a totalitarian government for that reason. It's too hard to control the whole thing, while it would be much easier if it were one contiguous flat continent. Probably the reason Europe isn't, but China and Russia are. And why North America may be in the long run (yikes!).
Earth has no foreign trade and extreme poverty there fell by 50% between 2000 and 2012. China is not even an order of magnitude smaller.