"Jews of Israel are mostly not indigenous, but east European refugees and converts from Brooklyn."
Today's Israelis are mostly second and third generation descended from 600,000 or so that were there in 1947, plus descended from about another million Middle eastern and North African Jews exiled from their home countries (some after living there for 2,000 years) plus others who have made what is considered a RETURN after generations of displacement and exile. There's some from NYC & Europe, obviously, but they're only a portion. It's interesting that the Jewish experience around the world over the last 2000 years is being persecuted and knocked around because ...we're outsiders, we don't belong. Jews in America still get this same kind of old hate even after living here for generations. Israel is where Jews come from, so it's only natural that it's where we go back to, or at least preserve for the sake of cultural and religious integrity.
Then again, there are those, possibly like yourself, who feel that Jews have no right to exist, and no right to call anyplace home. And it is especially because of those kinds of pathetic bigots that we are reminded how important Israel is and will always be.