Are all descendants of Adam under the curse?
Yes. Paul says every child of Adam is sold under the curse and is under the old Adam. Therefore, all descendants of Adam are under the curse, for they are his offspring, unlike Christ, whose sinless blood originated with the Father.
Les teaches that the blood circulatory system of the fetus originates with the Father, not the mother, which is why Christ's blood was sinless and divine. In contrast, every child of Adam is sold under the curse and under the old Adam, as Paul says. Paul writes as a believer who has reckoned old Adam crucified and dead, yet old Adam remains an influence in the Christian life. Les maintains that old Adam is crucified and declared dead in the mind of God, and when one believes the Gospel, God saw them in Christ on the cross, possible because with God nothing is impossible.