[Those must be some nasty grudges for vampires to still hate a guy who's going out of his way to help them, but it's not like Ed has any way to actually contextualize what's being said right now.]

There must be some pretty deep grudges then. There was a bad civil war in my home world which ended in the genocide of a people and they were still able to appreciate the help they got from doctors who were members of the opposing race.