I liked you better when you admitted you just wanted Calia in the job out of spite instead of actually trying to debate something you have no knowledge of or prior interest in except for the purposes of trying to own the Forsaken playerbase.
Yes, and that's why he too is out of place. Dev interviews and shit like Zeliek show you how undead react to the Light - it's agonizing because it reconnects the body and soul. Ergo, you feel the rot and the worms crawling around your body and you're in great pain. You can still use the Light, but it goes against oyur nature, which is why only those with a strong will can do it, with Forsaken holy priests either being just that zealous, showing the titular Will of the Forsaken or basically masochists.
That's not what he's getting at, but you're wrong even in the weak point you make. The thing with undeath is that it's a traumatic experience - it numbs positive emotions, enhances negative ones, splits the soul from the body and turns you into a monster, it's also accompanied by a loss of your will and is, with the exception of Zelling, not a choice. Sylvanas and Nathanos fit all those criteria. Calia chose to be undead and her state is an improvement of life - there is no trade-off. The Curse of Undeath is no curse at all to her but a benefit. As for Nathanos, for Sylvanas to fix one guy she needed a relative of his as fuel and this still almost killed her val'kyr and her intention was to use Eyir to fix everyone else up. It's in her internal monologue in BTS. So you manage to be wrong on every point.Which is exactly what Sylvanas and Nathanos are. They also didn't sport the decayed look of the other Forsaken out of solidarity. In fact Sylvanas had the power to restore them, like she did with Nathanos but just didn't care enough about the others to perform the necessary rituals. She even apparently used it on Derek Proudmoore so he would look more like Jaina's brother and thus had an easier time killing her. Yup, Sylvanas cared less about you then about her little toy assassin.
BTS goes in contradiction with every single Forsaken quest up to that point. Sylvanas did not need to be running some comical orwellian state for people to defect earlier - see Judkins or the guys with the bloodstones in Vanilla. Nor were all the Forsaken a bunch of pathetic sadsacks pining for human hugs which they were only denied by Sylvanas. The undead mistrusted the living who wanted to destroy them and the living justifiably disliked the undead because they were anathema to their religion and as already stated, were provably morally aberrant because of the curse of undeath. There's a reason BTS features zero (0) prior Forsaken characters, rewrites Sylvanas' stance on Lordaeron and offloads this characterization onto Calia and replaces this with basically nothing - humans who want hugs and will get hugs now that Sylvanas is out of the picture. They are not Forsaken, because no one forsook them, and they have no issues with their state or with the living. They have no relationship with the Horde because that relationship is out of focus - the only thing that grants them validation is humanity.I give you this. However BTS has shown that not all Forsaken are basically Scourge with free will and brain power. If this is the kind of character you want to play, a mass murdering psychopath with bio weapons, I am not sure how you ever expected any faction to accept you. The Horde is still mostly populated by LIVING beings, how do you expect them to support your character spewing blight everywhere for fun? Even Garrosh would have killed you for that. It's probably only the mercy of game mechanics that allow this to remain part of any faction.
You can turn back time on the dragon in Tirisfal and see Forsaken freely walking around Lordaeron Keep in-game right now. Every other Forsaken NPC in Cataclysm invokes the Lordaeronian heritage and brings up how they don't need to wallow as they did in Vanilla but can instead move forward. Others like the dark rangers see that as a way to fill a void in their hearts. Sylvanas herself tells you that the Forsaken are the heirs to Lordaeron and that because of that it belongs to them and holds speeches to that effect. This is entirely an invention of the book and never before in evidence.In short: Calia is a symbol of hope. She demonstrates that the Forsaken do not have to live in blight pools as they have done till now. That is exactly the point of BTS. Anduin and even Genn realize that the Forsaken could be different. It was only Sylvanas who deliberately kept them in the dark and gloomy because people without hope are a lot easier to manipulate then those who actually see something in their future.
The Forsaken identity is the identity that you can see in either intro of the Forsaken and in their questing experience of fifteen years. Sylvanas didn't make them hate the living or tricked them in the prior versions, they already did. What Sylvanas did do was bring them together and lead them. Try and find a single Forsaken quest congruent with BTS - you will fail and fail spectacularly.