I just went through J-Street's site. Unless I missed something, I cannot find a single J-Street-sponsored mission to Israel that is intended to strengthen the ties between American Jews and Israel.
I cannot find any J-Street sponsored events to raise money for Israeli poor or handicapped or terror victims.
I cannot find any J-Street events that celebrate Israeli or Jewish culture.
I cannot find any J-Street -sponsored college lectures by Israelis on any topic besides criticizing Israel's policies.
It is difficult to find any articles that praise the Israeli government. For anything. (I found one that commends Netanyahu for supporting an Egyptian cease-fire proposal in the 2014 Gaza war, and another that supports his attempts to restore ties with Turkey. In contrast, there are hundreds of articles that attack the democratically elected Israeli government.)
Also, it is curious that for an organization that is supposedly only meant for Americans, there is am Israeli version of the site that talks about how J-Street tries to work with Israeli political lobbies that are against the Israeli government.
J-Street is not trying to preserve the relationship between American Jews and Israel. It is trying to destroy it by strengthening those American Jews (and non-Jews) who hate Israel and by attacking those American Jews who love Israel.
Ben-Ami is again shown to be a liar.
(h/t Yoel)