Since they usually portray men who do this as very sexy, it could alternatively be a way to get subconscious consent from millions of impressionable young women, so that they have fewer psychic and psychological barriers to the practice?
Normal people are not likely to start drinking blood (which, anyway, can’t be easily digested in laerge amounts) but they are likely to associate vampire with “poor misunderstood victim of great charm” and therefore have less resistance to reading about things like the use of young people’s blood in a medical setting to alleviate genetic disease, and ageing.
But that does veer over into politics very quickly so it’s kind of a minefield to discuss on here, with this rule: BALG RULES - Please read them! - #80 by Lady_Eva
Psychic vampirism is, yes.