Your post is one long rant, and I will let it stew in its own juices, but let me say one thing. When it came to the Brits subduing America in in the 18th century, the economics for doing so really, really sucked (America was so far away, so big, the populations so disbursed, the economy so agrarian), particularly after the French supplied gunpowder and naval power to give it that extra muscle to make it more decisive, quicker, than it otherwise would have been. It was sort of like the Russian adventure in Afghanistan.
Also a factor was the revolutionaries didn't overthrow England's property ownership in America. If you look at British worldwide investment returns from about 1750-1900, slightly over 50% were made in America.