I think much of the Yiddish worship today, which wasn’t evident in Europe, is that we have an idealized vision of Europe in our minds today, when those who actually lived in Europe had no such delusions. As Rav Avigdor Miller writes in one of his books, Kovna, in 1932, had a bus leaving every half hour for the mechalelei shabbos to go to work. By the time he left in 1938, the bus left every 5 minutes.
Yiddish is a nice language. But with the limited free time available to us in the working class, my free time is better spent on a long-term investment in my Olam Haba- learning Torah and doing mitzvos.