My host at a golf tournament made overtly antisemitic jokes to me, knowing full well I am Jewish

I was invited as a tournament guest to a golf and hunt club on the North Shore of Boston that is historically and currently known for its lack of Jewish members. I drove in a cart with my host as we played the course. As we traveled down one of the fairways he pointed out a very large boulder in the field of play. My host laughingly said, “Do you know what we call the area behind that rock? ….Auschwitz. Once you get in there, you never get out!” He laughed and drove on, apparently clueless as to the offensive metaphor he had just shared with me.

There is no possibility that he was unaware of my Jewish heritage.

*Name has been changed.