Today, a particularly insidious obstacle to the task of education is the massive presence in our society and culture of that relativism which, recognizing nothing as definitive, leaves as the ultimate criterion only the self with its desires. And under the semblance of freedom it becomes a prison for each one, for it separates people from one another, locking each person into his or her own ego.
I'm not sure I understand the question. Morals are obviously relative, that's in the very word moral (derived from mores - customs). Even regardless of the definition morals are de facto relative since different things are, and always have been, considered moral in different places. There's no room for debate, unless you are saying that morals <i>shouldn't</i> be relative. That's a valid argument, but it's also like saying that people shouldn't kill each other.