It wasn’t a falsehood. It was stolen by Reagan and the owner class. Reagan gave away the store and shifted all societal power to the oligarchs, while corporate America, led by GE, shifted from the correct “customers first, employees (who were valued!) second, investors third” model to the “investors first, second, and only” rigged market profiteering dystopia we all suffer today.
The citizen’s of happiest developed nations of the world, not our gold plated cesspool to be clear, as a rule get months off a year, in addition to innumerable social supports. It’s a proven lie that this is how it has to be. This is just how the greediest/most sociopathic people want it to be, and since those traits are what our society rewards, and punishes their opposites, they have all the power.