I think elements of it are objective, which is why I said "more" objective. Individuals respond to things by varying degrees. However, there is something to be said about broad conditions.
For example, I think violence is undesirable to everyone. Those who seem to take pleasure in it are likely to be rather miserable people. Even a basic examination of them would reveal this, I'm sure. And those who use violence as an end to protect what or who is dear to them I don't think get by unaffected.
If you agree that violence is generally undesirable in humans, would this not be objective?
But, yes, I think we're probably on the same page, if not in the same paragraph.