It seems noteworthy that according to the NY Times, Jews for Jesus are specifically running campaigns “aimed at Russian-speaking Jews, Israelis and Hasidic Jews.”
This would make sense if they are doing so because they perceive these communities to be particularly vulnerable to their message.
We fought hard for Russian Jews back in the 70’s and 80’s.  But did we consistently fight for them once they were here? Have we reached out to the Russian Jewish community to make sure they feel they are indeed a part of the fabric of American Jewish life? Or do we often treat them as unequals, and sideline them as a separate community, a community that lacked knowledge even of the very basics of Judaism after seventy years of crushing communism?
And which “Hasidic Jews” are J4J targeting, and why?  Do we really think they are going to be spending most of their energy on the side locked yeshiva bochrim of Belz? Or are they targeting a specific group that has already– to a shocking extent– allowed crossover from Christianity to subsist within its midst? Chabad contains a real point of entry for those seeking to mix Judaism and Christianity with Rebbe worship.  And the Jewish community frequently continues to shrug it off, and generally downplay its significance.
As for the Israelis, it is quite clear that Zionism has not proven a satisfying replacement for Judaism.  But the Haredim, with their fundamentalism and their antics and bile have successfully partnered with the Labor-Zionists to convince many secular Israelis that Judaism is not for them.  Jews for J shrewdly assesses that maybe they are willing to consider something different.
And certainly with the continued rise and fallout of assimilation, it seems logical that Jews for J may find more frequent fertile ground in the offspring of a mixed marriage.  It is no surprise that they are listed on the links page of halfjew.com.
If the overall Jewish community hadn’t developed large pockets of weakness, this campaign would never be happening on such a massive level.  Our anger is primarily at our own failure.
Or at least, it should be.