As mentioned below, he wasn't even pushing the limits to my mind.
He made the very same comments in his talkshow episodes less than a year ago.
My conclusion is that they were looking for a pretext, and now with the 'accepted' IHRA definition, he is on shaky legal grounds about conflating Israel with AS etc. So agree it's a bravado statement with 'see you in court'...
I am surprised he had this platform for so long. We are in Stasi-land indeed