Were the gospel authors real Christians? They provide some quotable quotes that have fired up antisemitism throughout the ages.
Matthew 27:24So when Pilate saw that he was gaining nothing, but rather that a riot was beginning, he took water and washed his hands before the crowd, saying, "I am innocent of this man's blood; see to it yourselves."25 And all the people answered, "His blood be on us and on our children!"
I think the chances of that being historical are extremely small, and it's not in any other gospel, but there it is.
John 8:44 You are of your father the devil, and your will is to do your father's desires. He was a murderer from the beginning, and has nothing to do with the truth, because there is no truth in him. When he lies, he speaks according to his own nature, for he is a liar and the father of lies. ... 47 He who is of God hears the words of God; the reason why you do not hear them is that you are not of God."
Both of those ─ and more ─ have given, and give, aid and comfort to antisemitists through the centuries. And just look at the Christian record for extortion, theft and murder against Jewish citizens.