It's not just a matter of the castle he used for his ritual. It's the fact that the entire apparatus of Von Carstein vampires and their libraries of lore for him to learn from in order to even get the idea to do what he did in the first place.
Yeah.
[agrees with Salty, proceeds to talk about what Salty said a bit]
I think that's a big part of the reason the destruction of Castle Drachenfels is viewed in-setting as such a big deal. It's not
just a place where a bunch of vampires live (though it's that too), it's also a place where said vampires had lots of tools and resources that they could use to become more dangerous.
Imagine if someone somehow managed to blow up, say, the headquarters of the Bright College. This wouldn't just kill a bunch of pyromancers who were in the building at the time; it would
permanently, or semi-permanently, decrease the ability of Imperial wizards to wield
aqshy and learn how to wield
aqshy effectively. Great works that are possible with the Bright College's buildings still standing, are not going to remain possible without it.
Considering how immortal vampires are, figuring this out will reduce net deaths on the long run, to be fair. Unless you figured how to permakill them.
I don't agree.
Vampires are very immortal, but if you work hard at incapacitating them and keeping them as skulls in a vault or something, then you can in theory keep something like 90% or 99% of the extant vampire population out of circulation at any one time*.
By contrast, trying to maintain peaceful coexistence with superpowered beings who have the physical strength to beat up most of your soldiers and mental compulsion powers that make it relatively easy for them to just waltz in and stage a coup of your government if they're so inclined...
and who like to eat people... is going to be inherently difficult. Vampire subcultures will not reliably stick to some kind of UBERLEET HONORABLE WARRIAH mentality whereby they never ever feed on the humans around them, and reliably obey human authorities, and instead focus all their aggression and powers on outside threats who are expendable and acceptable targets for feeding on anyway.
Given the track record of Warhammer Fantasy vampires, or for that matter vampires in fiction in general, "If you can't beat 'em, join 'em and accept your place one rung down the food chain from the suave superhuman pale bloodsuckers" is not a good, reliable, or stable strategy for the long-term prosperity of human civilization.
_______________________________________
*(Barring an End Times tier disaster in which case the vampires are just one more reason for civilization as you know it to be ending)
How does that not cause unnecessary deaths? Vampire deaths in this case. I mean if we're going full rational society and moral behavior then vampires are humans at birth and retain significant parts of their human needs, human curiosity and human ingenuity. They just suffer from a complicated illness that, among many other things, also affects their minds. And gives them awesome superpowers and potential immortality.
And gives them a strong desire, or outright need and compulsion, to kill and eat (selected parts of) other people.
My right to exist, to indulge in moral behavior and human curiosity and ingenuity does not give me the right to kill and eat other people. If I insist on exercising such "rights," then my death may very well
become necessary, not unnecessary.
