I think it's the part where a promotion of weaponization is claimed. I'm not seeing that either.
Is it weaponization of victimhood to disagree, and warn others of the hallmarks of a problematic position?
I don't think anyone was confused about who the 'us' and 'them' are. Every group casts a shadow, so it's hard to talk about a 'they' without there being an 'us'.
The weaponized victimhood is used browbeat critics and to ensure that whatever "x-ist" phenomenon someone may be speaking out persists unchallenged. "Xs are the real x-ists, and truth-telling heretics are the heros".
People Graham disagrees with who are denied: those who speak out about "x-ist" utterances, whom he characterizes as "heretic hunters".