Morally gray men are the center of Red Flag Club because their romance cannot be separated from the choices that made them powerful. They may be strategic, violent, controlling, ruthless, predatory, or compromised. The fantasy is not redemption on easy mode; it is becoming the person who can reach the part of him nobody else gets to see.
Attraction is not absolution
Matteo can remain ruthless. Adrian can turn care into control. Lucien can be protective and predatory. Alaric can listen and still expect obedience. Rafe can be warm and still answer threats with violence. Their relationships develop through behavior and consequence, not a personality rewrite.
Men who make the trope dangerous