I tend to think the last few thousand years have given us well-honed antisemitism detectors. I definitely see this as antisemitic.
Would anyone dare to say about literally any other group "If I were x I wouldn't be able to live with myself because..."?
I'm not saying everyone who says something like that 14 years ago should be fired. But a head of diversity?
Addendum: Unfortunately, and very sadly for me, my antenna is also beeping at the fact that every post related to this story is getting flagged to death here on HN.