Moral Realitivism

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.

They say they are stupid for believing in god, yet they are also stupid for thinking all morals are relative.
I suppose it depends which "liberals" you're talking about. There are idiots on both sides, although bible-thumpers certainly are hard to resist poking fun at.

Besides, calling someone stupid isn't persecution. If it is, the whole human race is currently being persecuted.