Rational people recognize that some people in the past, and some people today, believe things thar are simply false like witchcraft, the efficacy of trial by ordeal, the power of a king to heal scrofula with his touch, the flatness of the earth, etc, etc. The Blood Libel is simply one of these false beliefs. It has been renounced by many popes and refuted by many historians. There is simply no reason to revive it. What at stake here is not just the fate of the Jews but the fate of rationality itself and in a non-rational world no humans can survive.
Judge orders Jerusalem Gay Pride attacker to undergo psychiatric evaluation (Haaretz)
from the article: And supposing they did drink blood?