Okay, I educated myself re the James Dunn who isn’t convinced Paul was altogether right in rebuking Peter. I am now able to offer a one word summary:
Liberal.
The longer version: Liberal as the day is long.
I remained curious re the James Dunn who was cited by a Catholic site as questioning, in Paul’s rebuke of Peter, whether Paul was wholly in the right and Peter was wholly in the wrong. Further study reveals that Dunn rejects both divine inspiration and the Godship of Jesus.
Iow. The Bible is merely the thoughts and memories of mortal men, and Jesus, while a figure of some authority, was not God.
This is how low the apple barrel had to be scraped in order to buttress the, ‘Paul wasn’t entirely right in rebuking Peter,’ idea. Iow, TOO low.
When, to prop up certain doctrines or ideas, you find yourself siding with apostates, the doctrines and ideas need to be rethought. For insights into the word of God, the last person we should be turning to is one who denies the deity of Jesus.