I mean you no ill will when I say this, but this argument completely misunderstands the point of the scapegoat and the point of Jesus. The scapegoat bore all the sins of the people upon its back and took them away. Jesus does that, not Judas. Judas died a horrible death for his own sin, certainly not for the entire nation of Israel. Jesus is the scapegoat. He Himself took the sins of His people on His back, was abandoned by all, and then died alone (“My God, my God, why have you forsaken me?”). John the baptist perhaps affirms this when he said, “Behold, the lamb of God, who takes away the sin of the world!” John the baptist was likely quoting from Isaiah 53 here, though the image of a sheep taking away the sins of the world likely (though not definitely) evoked to a Hebrew audience the image of the goat doing the same thing