1. You are contradicting yourself. One one hand you says the sangh inspired textbook have no mention of hitler's ghastly treatment of jews, and on the other hand you are saying that sanhgis love Israel/jews
2. Jews, Christians and Muslims are indeed foreigners. Go sufficiently long back in history and there were no jews & christians in India and the killer cult was not even born
3. Regarding common enemy of "you know whom", this reason is in fact bringing the whole civilized world together nowadays - gang up against the killer cult or die. This preaching of "my god is the only god" (jeopardising the religions who believe otherwise, like hindus) and "my messenger was the best as well as the last (jeopardising the old abrahamic religions as well as stopping any new religion to be born), is the nemesis of humanity.