Handel thought that because it's historically true that some Jews did participate in Jesus' death, that it's not anti-Semitic. However, Handel's father thinks that protraying Jews as "Christ killer" is anti-Semitic even if historically true. (Handel got his father to admit that yeah, some Jewish leaders at the time did participate in bring Christ before Herod and Pilate).
Of course, it's nonsense to say that "the Jews killed Christ." But it's also nonsense to say that "the Romans killed Christ." In truth, a few individuals participated in his death, some Jews, some Romans. In fact, according to the Gospels, Jesus came to die. He didn't even defend himself against Pilate.
This fear of portraying bad individuals of whatever race or religion is just the usual manifestation PC sensitivity. People should get over it.
BTW, I thought The Last Temptation Of Christ was the most believable (and pro-Christ) film I've seen to date. I don't understand why so many Chirstians were upset over it. It humanized Christ (in a good sense), unlike all those other films that portray him like a fantasized caricature.
It seemed so banal to me then. Now decades later, I can understand more the temptation of a normal life, with a normal family and love.
I have yet to see the film. I should probably make a point of renting it.