Claim. Sun Myung Moon teaches relentlessly that the chasm between fallen humans and God is fundamentally about the spiritual dimension of human sexuality — the man-woman relationship — and that without resolving this, even “good” people remain caught in the satanic blood lineage (“children of your father the devil,” John 8:44) and cannot access God’s deepest love in eternity.
Elaboration. Hendricks frames this as the distinctive UC reading of the human condition (per value-2-people-are-spiritually-lost-and-god-is-suffering). The Divine Principle gives the same diagnosis: “there is one social vice that human efforts alone can never eradicate. That is sexual immorality. Christian doctrine regards this as a cardinal sin. What a tragedy that today’s Christian society cannot block this path of ruin” (EDP, p. 5).
The structural claim: sin is not primarily ethical (which Christians and other faiths can address), nor primarily of the heart (likewise broadly available), but of lineage — passed through physical generation and resolvable only through a sacramental restoration of lineage. This is why the Blessing is the load-bearing UC sacrament: it is the rite that addresses the diagnosis. The atomic messiah-completes-physical-marriage-and-family-salvation explains why the messianic mission must therefore include physical/familial completion.
For Hendricks this is the radical message that should drive UC evangelism — what makes UC distinct from other faiths that excel at ethics and heart.
See also. blessing, true-parents, sun-myung-moon