the christians hated us since the christianity became the official religion of the rome empire, claiming we killed jesus, and they also claimed that now the christians are the real sons of israel, while jews betrayed god, and no longer "the choosen people".
The real fact is that jesus never did realy said something against judaism, also he never started a new religion
he was born as a jew and died as one (another fact that the german racist during WWII somehow missed out)

lots of people out there think that judaism is about revenge
while christianity is a peacfull religion, but judaism rulles about "eye under eye" were not something new the jews came up with. this system of rulles was also in babylon and all over mesopotamia. Actualy the bible (im talking about the jewish part, i dont know its english name)
is a very sociable code of laws, including many laws that urge rich people to help the poor, the strangers that are comming to live with the jews, and other weak members of the society