The meme isn't about "lost money" -it's primarily about the implied false narrative that 11 optionally observed federal holidays somehow constitutes an financial crisis, secondarily about the assertion that "soon we'll end up having a holiday for every once working day of the year" is inflammatory, alarmist, garbage rhetoric as indicated by the estimated 8k year time frame required to fill an entire calendar year with federal holidays.
Again, to lose a thing, it must first be possessed. As the aforementioned tax revenue doesn't exist as a real asset until, unless a transaction takes place, there is no loss of monies. As a business does not gain or lose income until/unless a transaction takes place, there is no loss of monies. Ergo, the notion that businesses electing to close in observance of a federal holiday lose money is a false narrative.