I've never been one to share the agonies of those who despair over the death of languages, except insofar as the loss of ancient languages renders certain documents and artworks unreadable. An entry at The Dish discusses the inclusion of Yiddish as a threatened language:
Frankel comments on how secular Judaism has contributed to the death of Yiddish and a simultaneous loss of traditional Jewish identity:
The secular community is dead, dead, dead. There’s no Yiddish press, no Yiddish theater [not quite accurate since there is one still-vibrant group, the National Yiddish Theater-Folksbiene]. Dead, dead, dead. There were hundreds of Sholem Aleichem schools, Peretz schools. Where are they? How many Yiddish books are being published? The secular people dominated everything and now they’ve lost. Hasidim are pushing everyone to be more religious, more Jewish.Rabbi Frankel’s bemoaning of the potential extinction of Yiddish illuminates a greater issue: The language has become synonymous with Orthodox Judaism and has lost its meaning within the secular parts of the faith.