It forces us to ask some hard questions. God is looking for a people who truly represent him in the earth. I know that some will argue that no matter what the Church does the Jews will find a reason to reject the truth about Jesus. A church that sees itself as having been grafted into the Jewish Olive Tree and made part of God's purposes for the blessing of the Jewish people will act very differently to the natural branches than gentile Christianity historically has. When the Jewish people see genuine love and support coming from the Church, they will be more and more open to listen to the testimony about their own Messiah.
Love has the power to break down every barrier.
When the Church starts to see herself as part of the Jewish nation, it will begin to love and support her properly. When that happens, wonderful doors of witness will begin to open for the true testimony of Jesus to come forth. I recently heard a testimony that beautifully illustrates this. A synagogue was badly vandalized and burned and the local churches rallied together to support the grief-stricken Jewish community. Money, political action, and physical help in rebuilding the synagogue poured in.