I think the right avenue is to complain to W3C instead. Especially in the light of
https://www.w3.org/TR/2023/DNOTE-w3c-vision-20230725/#princi... and violation of CoC
https://www.w3.org/Consortium/cepc/#unacceptablebehavior ("Sustained disruption of discussion.")
The problem is that the proposal has not yet been brought to W3C.