I think he is just trying to imitate Christ to a limited extent.
Quote from Pope Benedict XVI at Al Aqsa mosque...
What happened to the Triune Christian God, the Father, the Son and the Holy Spirit? I noticed, the pope never crossed himself. Too offensive for the Muslims and Jews?
Ecumenism is poison. It's twin is relativism. If you start modifying your religion so as not to offend other religions it's not a good sign.
Christ did not come to bring peace but a sword with which to divide the sheep from the goats. He did not preach ecumenism. Early Christians did not pray in front of Caesar's statues; they chose death over appeasing their enemies.
Jews and Muslims deny the divinity of Christ. In doing so they are no different from other who do, the Arians, Modalists, Adoptionists, Jehovah's Witnesses, Unitarists, etc.
Christ never suggested we should pray with heretics. He forbade his disciples to preach to the Gentiles and even the Samartians who are schismatic Jews!
So, that begs the question: Were you born an Orthodox Jew? If not, how did you become a Christian?
You're being way too judgemental in my opinion .
Perhaps you should read the following article...
Orthodox and Catholics: Standing Together To Combat Relativism
http://www.catholic.org/international/international_story.php?id=30770