Amon did not seek to destroy the cycle. He sought to accelerate it. He saw that humanity was the unexpected variable—the "Third Purity"—a synthesis of Form and Essence that required no Xel'naga guidance.
And yet, the noise was infectious.
Unlike the Protoss, whose form was gifted, humanity stole its form from entropy. Unlike the Zerg, whose essence was harvested, humanity invented its essence through suffering. starcraft codex
He created the Hybrids not as perfect beings, but as parodies of humanity. Look closely at a Hybrid. It has the form of a Protoss. The essence of a Zerg. But its eyes—empty, obedient, hollow—lack the one thing humans carry like a curse: Amon did not seek to destroy the cycle