Yes, James was the first bishop of Jerusalem. That is why he presided over the council. The same thing has occurred at every council – the bishop of the See it occurs in presides.
But did James “make the final decision”? Perhaps if one subscribes to the doctrine of “
whoever gets the last word in wins.”
What happened at the council of Jerusalem?
After “much discussion” in which many views had been proposed, Peter spoke the deciding word - that which had been revealed to him long before (in Acts 10), asking why attempt to place the Jewish yoke on the necks of converted pagans?
Paul & Barnabas provided testimony that supported this decision by relating their experiences in seeing God work through the Gentiles.
Finally, James who was not only the “host” of the council as the presiding bishop over the see in which it occurred, but was also the chief representative of the Jewish Christians, adopted Peter’s view and in agreement therewith made proposals which were expressed in an encyclical to the converted pagans.
(As a side note, Paul circumcised Timothy AFTER the council at Jerusalem, knowing full well that circumcision was not required, but still doing so due to what the Jews might think. Acts 16:1-3. Doesn’t sound too far from Peter’s actions in Gal. 2.)
This is only a big question for non-Catholics who think that there was a “seat of power of the Christian church” at Jerusalem.
This sounds similar to the Seventh Day Adventist focus on the “sabbath” rather than the Lord’s Day, claiming that the sabbath was “moved”.
In any case, “seat of power” is a geographical term.
The papacy is not geographical, but is a position of primacy that was first given to Peter by Christ, when he was promised the keys to the kingdom of heaven.
Peter was the first bishop of Rome, & his successors are also bishops of Rome.
God Bless,
Chris