The Pope could not find it in his "holy" heart to distance himself and his Church from this crap, just as his "Holiness" could not find it in his heart to distance the Church and himself from Williamson's Holocaust denial.
The Vatican operates like a country. It has a "Secretary of State" and ambassadors.
The Church wants to be treated like a country, and, in this case, it should be.
Just as countries cut off contact with rogue states and the like, the US should cut off all contact with the Vatican and with the Nazi who sits on its throne.
[Hat Tip: Ben Max.]