[ultrastable]

generally speaking, that's not clear at all. are the quotation marks around antisemitism there to indicate skepticism that it even exists? and whether the antipathy is "moral" or "racial" is just pedantry, in this case - in common use "antisemitism" is used to mean hatred of Jews or those perceived to be Jewish, which I assume you know - it doesn't really matter if it's explicitly racial or not.