[Cronos]

In 3 John 1:9, a Greek church wouldn't even allow John and his people in the church due to antisemitism.

You really should read, this was not due to Anti-semitism. It would be idiotic to be antisemitic as Christianity until 194 was pretty much a Jewish sect

The 3 epistle was written between 60 to 65 AD, not 100 AD as you state. And this was even before the destruction of the temple in 69AD - so Christians were a Jewish sect even more so

diotrophes' opposition is not due to anti-semitism or indeed anything doctrinal but about chain of command.

[chuckles]

Does 3 John say or not that John was forbidden to speak in a Greek church? How can you justify not allowing John to speak over “Chain of Command? I’m pretty sure Apostle that Jesus loved outranks pastor of a church.