They have all the usual emotions regarding other vampires, even if the balance is different. Besides, moral considerations can move you where emotions disagree, and it’s “should” we are talking about, not “is”. What should you do, not what you’ll actually do. What should you feel, not what you’ll actually feel. For example, non-vegetarian vampires very likely shouldn’t kill people for food.
They have all the usual emotions regarding other vampires, even if the balance is different. Besides, moral considerations can move you where emotions disagree, and it’s “should” we are talking about, not “is”. What should you do, not what you’ll actually do. What should you feel, not what you’ll actually feel. For example, non-vegetarian vampires very likely shouldn’t kill people for food.