Mmm, some random sage. They have a whole base and all and warn against female vampires: they are always their to prey on you
Thankfully, it seems they haven't yet found a way to defeat vampires, they just know that vampires hate X.
No, revenge just births revenge. Attack them and you will prove their point. You have to love them. If they think females vampires suck off energy from males, go prove them wrong by stealing their wives!