Rom 9:7 Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. Rom 9:8 That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.
Rom 9:9 For this is the word of promise, At this time will I come, and Sara shall have a son.
Rom 11:19 Thou wilt say then, The branches were broken off, that I might be graffed in.
Rom 11:20 Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear:
The Jews are blinded because of their unbelief. We are graffed in.
Honestly, I don't know how much clearer it has to be. Some simply want to throw out Romans 9-11 or ignore it. I wouldn't recommend it.
Picking and choosing verses, spiritualizing, and redefining words, are what supercessionists and other judeophobes are best at.