The writer has got the first paragraph completely wrong. The rest of the article itself doesn't follow from lead paragraph anyway. The working class in Britain was created by the Industrial Revolution. The parliament at the time of the beginning of the Industrial Revolution was controlled by the privileged classes and the two parties, Tories and Whigs, had no regard for the emerging working class. The history of the time shows that the privileged classes fought strongly against attempts at universal suffrage. The writer mentions the “wealth” of the British working class. This not only laughable, it's risible. The Industrial Revolution was late in America, the British colony and the young nation was an agrarian society for most of its early existence. This is fantasy.
The first paragraph is silly, but some of the rest sort of makes sense. America really did develop peculiarly. This is because America was able to develop industrial production from the start using the methods already invented in Britain, and on a huge so far undeveloped landmass. This peculiar situation produced a lasting economic boom and consequentially a mindset similar to what the author of the article described.