And as always in economics, "demand" does not mean a mere wishful, fanciful desire, but rather, it means really putting your money where your mouth is. For example, my own parents could probably afford a Ferrari if only they were content to live in a one-room apartment and eat only dog food. While they may fancifully desire a Ferrari, their actions show they do not truly demand one. Talk is cheap; actions speak louder than words.

True demand for a second day off, would mean that employees actually prefer jobs where they make less money but work fewer hours. If employees actually preferred such jobs, in actual practice, then employers would compete for employees by offering precisely such jobs. If employers found their employees fleeing for alternative employers who pay less but offer more days off, then the first employers would have to match those terms in order to compete. But employees are not so fleeing; they may fancifully want more days off, but they are unwilling to actually make the necessary sacrifices. They thus do not truly demand Sunday off; they are not wiling to put their money where their mouths are.

BUt, thank you very much for a welcome twist to the idea. Ranting about Sundays off is definitely a lost cause, and not just because of Haredi opposition. This would have a chance if done properly with Haredi cooperation. FWIW, one of the main reasons claimed until now (thanks for not bothering to use it) 'less chilul Shabbat' is patently false because now non-religious will have a two day weekend to travel and shop, but certainly 'forbidden' Shabbat work should be enforced.