Messianic Jews would be considered Christian as they believe Jesus is the Christ. Catholics are not Christian. Christianity is following the King James Bible or some of the early accurate texts or those of other languages of which I have no information about. God promised to preserve his word. As far as giving in to an attacker, the bible says we can defend ourselves and our property. We revere Judaism because the Gift of Eternal Salvation through Jesus Christ came through the Jews and then was given to us "Greeks."