Yup. Whoop de do you've read the gospels in Greek. Doesn't matter what language. If you want to assume groups such as the Pharisees were raving lunatics, kniving conspirators involved in a plot to kill their own people that's your problem.
The idea about "writers, redactors, and interpolators in Rome" is simply a red herring thrown up by those who insist on treating eastern-Mediterranean Jews as anti-Semites because they report negatively on their persecutors.
You got it. All except for the red herring part.
There's plenty of evidence from Jewish sources that some of the Sadduccees, including the Temple Sanhedrin, in the late 2nd temple period were Roman quislings who would have happily killed off a homegrown holy man if they thought he threatened their relationship with their Roman overlords.
Of course the religious authorities in Jerusalem were conspiring to wipe out Jesus's followers. That isn't disputed by anyone. Their motives, however, had to do with the fear of attracting attention from the occupying authorities, not with race hatred. Caiaphas is quoted in one of the Passion Gospels as stating that it was better that one man should be sacrificed than the entire people. The religious authorities were trying to avoid what happened soon afterwards with the revolt and destruction of the Temple in A.D. 70.
The idea that this had anything to do with "anti-Semitism" as it is currently understood ignores the politics of the eastern Mediterranean at the time.
You don't have to look at the NT for that, we can see a lot of older stuff like Cain and Abel, Saul, David and Absolom, The Sons of Israel and Joseph, Ahab, Ahaziah and the rest of the Book of Kings for that matter. You don't need to worry about the anti-Semitism of the NT prophets, the Old Testament prophets and writers seemed to be rending their garments over God's chosen people as well.