Yes. It spread both the Jewish Faith and the Christian Faith all over the world. The destruction of Jerusalem and the resulting Diaspora were among the greatest tragedies in History, but something good did come of it.
And now, the Jewish People are back in their homeland. The gentile world has a real problem with that, it would seem.
Judaism and Religious Freedom in the Rabbinic Period (70 CE â 1000 CE)
http://berkleycenter.georgetown.edu/essays/judaism-and-religious-freedom-in-the-rabbinic-period-70-ce-1000-ce
And the Jews could also hit back hard as we see during the Kitos war -- where supposedly 240,000 gentiles were killed in Cyprus