No US Jew truly concerned about Israel's survival would try to "hamstring" evangelical support. It's only the part of the Jewish left which is atheistic and anti-Israel that attempts to drive a wedge between Jews and Evangelicals on Israel. The author of the posted article is an example. So are Eric Yoffie and Max (Son of Sid Vicious) Blumenthal.
BTW, the tactic of Bloomy Jr., sneaking into an evangelical conference and trying to get Rev. Hagee to say something into Max's microphone that Max can put up on YouTube to make polical hay on the left, is repulsive.
That 86% vote for anti-Israel candidates, and spend as much time,or more, fretting over the perceived offensiveness of evangelicals as they do over deadly bombings... says what it says. US Jewry has turned its face away from Israel.