Keep following the Jews and their decisions - to include their denial of Jesus of Nazareth being God in the flesh. I believe 1 John writes that such people are the anti-christ. So if you have decided to follow the Jewish decisions at Jamnia, you have just eliminated the Gospels as Sacred Scriptures. By your own mouth you are condemned.
And then you throw the "anti-semeticism" charge on us because we don't follow the Jewish decision?
Next, you'll be calling Jesus "anti-semetic" because of His "Woe to the Pharisees" speech...
Romans 11
25For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
26And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
27For this is my covenant unto them, when I shall take away their sins.
28As concerning the gospel, they are enemies for your sakes: but as touching the election, they are beloved for the father's sakes.
29For the gifts and calling of God are without repentance.