I would suspect this was the actions of an individual at a particular JCC.
First 2 lines of the article:
“A Florida JCC canceled a Jewish author’s talk because her book mentions slavery.
The JCC later issued a public apology and re-invited the author, Rachel Beanland…”
The article does go on to say that she did speak at other JCCs in Florida.
(Opinion) I don’t doubt media is affecting the brains of the older folks down in Florida that are ripe for the influence and are spending far too much time in front of Fox News and the like. But let’s not make this a blanket statement against Jews.