Re: Ch. 4: Background Knowledge (Christianity) (On the Historicity of Jesus by Richard Carrier)
You are concocting a non existent dispute out of your imagination D.B. Paul is writing to Gentile Christians in Rome though there may have been some Jewish Christians in that church also.
It's clear from Romans chs.9 to 11 that he's addressing Gentile Christians. If you think Paul doesn't have a high Christology in Romans then you can't have read it with your eyes open.
I suppose you want chapter and verse here? I'll get back to you with them.https://carm.org/paul-think-jesus-was-god