Hiya Ken
Romans actually is about conflicts between the Jewish sacramental beliefs in both food rituals and circumcision. The Jews felt that these were fundamental to being a Christian however Paul disagreed. The background is set out in Acts.
Your view that it is about customs is entirely incorrect and understates the importance and meaning and the degree of division in the early church around this matter. You might like to discuss “kosher” with a Jewish friend and “halal” with a Muslim friend to get some perspective. Similarly you could discuss circumcision with a Jewish friend.
Paul’s words didn’t strive to attain unity as you said. Paul had a theological position that circumcision and Jewish food rituals were not required to be adhered to by Christians. Don’t forget in the early church, Christians went to the synagogue, they saw themselves as a subset of Judaism, not an alternative. It seems to me from Acts, that Jewish Christians, including the apostles but with Peter as a bit of a standout although ambiguous, felt that converts needed to become Jews to be Christians.
Paul was arguing that you don’t need to be Jew to be a Christian, although because of Luther’s and by extension Protestantism’s reliance on this epistle as a departure point to oppose sacramentalism and agency in Christianity, this theme seems to be missed by evangelicals, as they focus on one or two verses.
Paul goes on to say, as an extension of his view that compliance with Judaic sacramentalism is not required to be a Christian, that it is also important that those not subscribing to sacramentalism use this as a basis for superiority.
It is interesting that you state the verses are written in a particular context but then do not identify that context correctly. The true context is the early debate regarding circumcision and food.
All your statements after the line “these verses…” are a gloss. They are no more than Ken making a view.
Paul’s view, clearly expressed in Romans and elsewhere, is that what matters is a belief in the resurrection. Paul says nothing at all about scripture. In his time, scripture would most likely be the Septuagint, with the new testament as we know not existing for another 300 years.
Have you considered that you may hold false doctrines? What makes you certain that you don’t?
One the one hand, you state that you don’t idolise the bible, and on the other hand, you seem to present Christianity as a religion of a book, the bible, rather than as a living faith. Where do you think the line is between idolatry and Christianity in this regard?
Your argument has a heavy reliance on your opinions. Why should these be given any sort of privelege?
You may find it interesting to read through Acts. Such a reading will contextualise Paul’s epistles and save you from having to guess or surmise what Paul is talking about.
Cheers
John