It is mostly just because Alucard has no way to penetrate his armor, and his more supernatural abilities are too weak to so much as inconvenience the foremost Champion of Khorne short of Angron.
A powerful Daemon Prince of Slaanesh came closest to overriding Kharn's Collar of Khorne, but failed. Alucard is not nearly that powerful.
So if I were to grow my beard real thick, then shave it so that there is only hair on the neck, then I wore glasses, shorts that are cut above my knees, a white T-shirt, a skull cap, and a My Little Pony backpack, and THEN I go to a convention Maisie Williams (Arya Stark) is attending, and I ask her, in front of thousands of people, at the top of my lungs, "HAVE YOU LOST YOUR VIRGINITY YET?", would I be crowned King of the Neckbeards?
Originally posted by BloodRain
Lil more detail on this?
Okay.
We get Ursa's, Zuko's Mom, bakstory. She used to be a commoner who was involved in plays and the like when Fire Lord Azulon showed up one day because the Sages predicted a union between his child and a descendant of Avatar Roku would produce a great line of Fire Lords. But Ursa is in love with some guy and he doesn't want her to leave. Ozai is like "tough shit" and they leave. And of course it turns out that Zuko is the child of Ursa and the man she really loved.
There's more but my God is this horrible. This hurts so many things in the original I can't believe it.