I grew up as a non Bikharan Soviet Jew in NYC (since 1979); the Bukharians are much more energetic in combating assimilation, which has started taking its toll on Ashkenazi Soviet Jews in the US like (I moved to Israel 5 years ago). The BUkharians can insulate themselves all they want, but they will too fall victim to assimilation. Jews in the US do NOT have cultural autonomy, like the French in Canada, or the Arabs in Israel. There are no (and never will be enough) institutions with official sanction and support that could maintain an autonomous Jewish linguistic/national culture in the Diaspora. Israel is the only sure way to ensure the Jews don't disappear as thousands of other small nationalities...
Israeli soldier lightly wounded after being hit by car south of Hebron (Haaretz)
from the article: Bukharian Jews protect their culture in a N.Y. enclave