what makes right-wing antisemitism not materially real?
Discrimination only becomes materially real if it is systemic, if there is systemic discrimination. It's the same reason misandry and anti-white racism aren't materially real either: There are (very few, but still) actually anti-white racists and misandrists, but the thing that makes them irrelevant is that they are not systemic. Antisemitism was once materially real because it was systemic, but now it is not systemic anymore. Jews do not experience systemic discrimination for being jewish.
