Lorgar would not, and had never intended to, make Turing's choice for him.
Life and death, surrender and resistance—this was a battlefield that belonged to Turing alone.
If, at the end of his despair, Turing finally chose to give up and begged for death to release him, Lorgar would bring down his greatsword without hesitation.
That would not be cruelty, but a cold expression of respect between brothers.
Respect for a brother's final judgment over his own fate after enduring such torment—the only judgment that remained entirely his to make.
He would end this tragedy as swiftly and painlessly as possible, then utterly erase its source, Novalors and "Silverheart," from the Galaxy.
But if Turing's will, even in the deepest reaches of boundless darkness and pain, could still kindle the faintest spark of life, if he could still cry out in a broken voice, "I want to live"...
Then, as a Primarch and an elder brother, Lorgar would muster every ounce of strength, wisdom, and conviction he possessed with that same lack of hesitation, defending that glimmer and helping his brother fight the unjust fate forced upon him.
Events had already provided the answer.
On the brink of having his consciousness utterly consumed by metal and data, amid "Mother's" whispers and the Nanite Swarm's gnawing, Turing had cried out.
His voice had been weak, but clear; filled with pain, yet extraordinarily stubborn. He had chosen to live.
He had chosen to face it, endure it, and break free. That choice itself was the most powerful resistance of all.
He was willing to live and confront all this absurdity and cruelty.
Even though his birth had been a conspiracy, his childhood an experiment, the being he considered his closest family his greatest tormentor, and the "home" he cherished an exquisite cage...