From things I’ve read over the years, it seems that more than a negligible percentage of Jews who attend outreach shuls and centers are expatriate Israelis. Could it be that they are open to exploring and experiencing Judaism specifically because living in such a predominantly non-Jewish environment intensifies their sense of alienation or stirs the muted embers of the Jewish neshamah? An interesting recent essay in the online magazine Tablet seems to offer some confirmation of such a dynamic.