Imaknick (is that "I'm a Knick")?
I can answer your question as a Christian. The truth is that at a very narrow time period around the death of Christ, some radical Jews considered him and his followers to be a threat to their power. It wasn't all Jews by any means whatsoever, and historically the phase of persecution was certainly an anomaly within Judaism.
Don't forget that the Romans, who are our real enemies, persecuted both Jews and Christians with equal ferocity for centuries, until the time of Constantine, when only Jews were targeted for pogroms and holocausts thereafter.
The people who forever after have accused Jews of being "Christ-killers" are savage pagans, plain and simple, who are jealous of the Jews because their lazy, primitive, impoverished jokes of civilizations could never compete with Torah discipline.
Hope that helps.
Chaimfan