As unforntunately, even some commenters here are abusing the record. Mr. Grant, who has 2400 followers on Medium, should be permanently removed from the platform.
As a Holocaust historian, you know that "never again" can happen again, especially when antisemitic tropes are allowed spread on social media, which Medium is. You may find this essay I wrote last year interesting. https://medium.com/illumination-curated/yesterday-jews-around-the-world-observed-yom-hashoah-77eecff25155 It discusses antisemitism on Medium that Medium refused to address. As the Medum staff clearly and deservedly respects you, maybe you can get them to change their policies.