>>192939559Millaarc is a born monster. As a vampire, she's a monster inside, with a veneer of humanity outside. She still thinks she deserves being saved because she lacks self awareness and believes that she wouldn't be a monster if she had a human body (No different than how the point of the vampire legend is the corruption in the hearts of men: Their depravity and debauchery are their own choosing, covered with their finery.) She thinks she deserves her humanity back, without ever understanding she never had it.
Vanessa represents a made monster. Her circumstances have changed her and her humanity is twisted. Like Frankenstein's Monster, she is devastated by the treatment by her creators/saviors, who reduced her to an object after her "death". She loathes the humanity she's no longer a part of, and derives satisfaction from their loss and pain. This is why she's so cruel in combat. She recognizes that she likely doesn't deserve humanity, but seeks it none of the less, because deserve has nothing to do with reality.
Elsa represents the afflicted monster. She's not a good person; but does not really fall outside the realm of humanity despite her body. Like the werewolf, she mostly desires normalcy, but her affliction denies it to her. This is represented in her structure by the detached nature of her weapon: If Elsa went without her combat symbiotes, she could pass for human (Maybe try a hat?). She takes the lost of her humanity the hardest because she "was" the most human out of the group. She fundamentally wanted and deserved her shot, but was ham-stringed by her companion's baggage.
She exists as a statement that Noble Red's bodies were never the source of their inhumanity: Even as a full monster, Elsa is still well inside a reasonable moral definition of human. That's why they're pushing her now, for whatever change of heart they intend by the end.