[pinkpanther]

No, they are not. If they are foes, the Muslims would not protect them in Spain. 

The Caliph Umar, when the Muslims conquered Jerusalem, was shocked to find that there were no Jews there. That's because the Christians persecuted and massacred them. He then gave instructions to his men to start inviting the Jews back to the holy land.

Pay the Jizya, and you will receive protection. If you cannot pay, death may be the consequence. Therefore, do not portray Muslims as solely righteous protectors.