Why Roger Waters' appearance at the 92nd Street Y was cancelled

In an earlier post, I reported that Roger Waters' scheduled appearance at New York's 92nd Street Y had been cancelled.

Anyone who knows how it happened isn't saying, but Lori Lowenthal Marcus manages to piece together enough to give us some idea how it happened.

The Jewish Press ran a story
on March 25 about Waters’ scheduled appearance at the 92nd Street Y,
noting that the Y had begun