It's only whataboutism if you avoid answering. I gave examples of other times where self-imposed rules were blatantly broken while those who broke the rules claimed no wrongdoing.
You're actually the one using whataboutisms as you're calling out similar communities as problematic without actually addressing the near-identical issues with Hexbear (additionally many of those communities have rules against direct links, unlike those on Hexbear).
Additionally, the reason there's no proof Hexbear users are behind brigading is because they're defederated at the moment - Hexbear users can't vote on other instances, hence me saying it'll be an issue when they re-enable federation. Going back a few months, I have seen a large number of posts with sensible debate being downvoted and a disproportionate number of comments from Hexbear users, checked "The Dunk Tank" (slop's predecessor) and sure enough there's a post linking directly to it.
Of all the theories to pick, that one seems a bit lacking as the reason the US is so religious is that all the religious fanatics moved there when Europe were moving away from that sort of stuff