Jesus acknowledged that the Jews were the descendants of Abraham, but that they weren’t the “children of Abraham” or the “children of God” anymore, but the “children of the devil”. Since Abraham is not their father, but the devil is, the promises that God gave to Abraham of those blessing Abrahams children being blessed does not apply to the Jews. They rejected Christ and are the children of the devil and not Abraham.
In John 8:37 Jesus said “I know you are Abraham’s descendants”.
in vs. 38, “If you were Abraham’s children,” said Jesus, “then you would[c] do what Abraham did.”
In vs 42, “If God were your Father, you would love me, for I have come here from God.
In vs 44, “You belong to your father, the devil, and you want to carry out your father’s desires.“
Not at all. "Children of Abraham" always had the dual meaning. If it hadn't, then Ishmaelites and Midianites would be children of Abraham in every sense, but they were not accounted as his children because they didn't have the faith of Abraham. If you don't do what your father does, everyone knew your father dismisses you as a child.
You have this wrong division to the word "anymore" like something changed. The spiritual covenant was always the same: believe on the Seed of the Woman to be revealed. Tribal and national covenants arose at many points in history and are easily separable. Because we're so far from the origin we made up other paradigms where we blur the two types of covenant, and that requires us to invent presto-changeo work on Jesus's behalf, but Jesus did not change one serif of the covenant.
You need to figure out what it is that's driving you so illogically. It appears to be some unstated objection that, if this is true, you'd have to do something crazy that may sound Jewish. I'm not proposing anything crazy or Jewish; I am proposing equal self-determination for all. Maybe you should come straight out and say what you think my position logically entails that you cannot accept, and then I can explain why the position doesn't logically entail it as you might mistakenly believe. (Or perhaps we can get to the real binary proposition separating us.)