It's not about what "I" think .... it's about the Scriptural points that Lee Irons made in his paper. I can tell by the question you asked that either you didn't even read what he wrote, or you missed some key points, one of which is: Romans 11 is a NON_MILLENNIAL chapter.
Here is an excerpt you must have missed:
".... Thus, we have four pieces of evidence, distributed pervasively throughout the entire chapter, from its initial statement in verse 1 to its concluding finale in verse 32, which, taken together have the cumulative effect of demonstrating that Romans 11 is not concerned with a predictive prophecy regarding Israel's future as such but with something entirely different.
The reception or acceptance of Israel mentioned in verse 15, or their ingrafting (as it is called in verses 17-24), is not a future eschatological hope but an imminently anticipated consequence of Paul's present evangelistic efforts among the Gentiles."