“practically wiped out in Israel (I stand to be corrected on that point)”
No, that’s correct.
When I was a kid in Israel, it was technically illegal.
Same with Ladino.
The heavy-handed goal was to unify the various Jewish groups from the Diaspora and speak one language — Hebrew.
What a loss! Not one young person can read the great Yiddish writers like Shalom Aleichem or the playwrights of the Yiddish theater. The only Yiddish theater performer in Manhattan is a gentile!