Constantine,
As to your first point, at times in the western Church James the Just and James the Less have been conflated into one figure. (Everyone agrees, as you say, that James the Greater was martyred early on.) While that is no longer a common belief, I used “commonly understood to be a different man” as a way of acknowledging the other notion without spending a lot of space explaining it.
As to your second point, I stated that James was first bishop of Jerusalem. I possibly erred in calling him the “apparent” host of the Jerusalem council, though. I wasn’t sure if Acts had identified him as leader of the Jerusalem church at that point, so I hedged my bets since I was drawing a conclusion from my own knowledge (“James was bishop of Jerusalem, the council was held in Jerusalem, therefore James was the hosting party”) rather than directly from Acts.
As to your third point, I’m sure you know (however wrong-headed you might consider it) that there is considerable Catholic apologetic opposition to the notion that James took the sole leadership role over Peter at the Jerusalem council. I did not want the thread to turn into a debate over that, and for the OP’s purposes it seemed sufficient that James was at least equally prominent to the Apostles present.
That does kind of bear on the OP’s question, though. Leaving aside for the moment any questions of Peter’s primacy, it still seems odd that a “mere” bishop would have the last word at a council attended by multiple Apostles. Would you say that it was because they were meeting in James’s city, or would there be another reason?
Usagi