He cites a very useful analogy with Carmelite nuns taking over an abandoned building next to Auschwitz to pray for the souls. This was taken to be an attempt to Christianise a place of profound Jewish suffering. Pope John Paul II asked the nuns to move.
An even better analogy is the controversy over erecting a large cross as Auschwitz, a controversy that James Caroll considers at length in his book Constantine's Sword. Given that the Shoah is the end-point of centuries of Jews being killed for failing to follow Christ, the use of Christian symbols at the site is profoundly inappropriate, even offensive.
Yes, the Nazis killed Jews for racial rather than overtly religious reasons, nevertheless the Shoah is essentially a great big pogrom. One done by a modern European state with modern technology and organisational capacity to be sure, but it follows the pattern of a pogrom--it starts with vicious rhetoric and legal persecution of the Jews, the killings begin slowly, peak in an orgy of death when whole communities are wiped out but is erratic in its impact (in some areas, everyone is killed, other places they are driven away, or killings are sporadic and interwoven with theft and extraction of labour) and then drops away dramatically.
Nazi Jew-hatred was a secularisation of centuries of Catholic (and Orthodox) preaching, extending back to the C4th based on the "wicked" failure of God's Chosen People to accept Christ. Indeed, under the accusation of Deicide, the cross was a symbol of Jewish "evil". To erect a cross as a marker at Auschwitz is simply monstrously inappropriate.
I fail to see how a mosque at Ground Zero is
ADDENDA Two Canadian Muslims label the proposed mosque a provocation and include their own striking analogy. A prominent American Muslim is quoted as being against the proposed mosque. While a wicked suggestion, which made me laugh, is proposed.
FURTHER A comment on the Mosque near Ground Zero controversy which works for me:
... while religious freedom permits this mosque, building it so close to Ground Zero is like building a Militia Movement Recruiting Center next to the Oklahoma City Memorial and saying, “Hey, it’s just to promote dialog and understanding.”