For me, it’s the refusal to demontize them that’s particularly bad. I can understand free speech absolutists (in theory anyways, in practice you’ll find that they VERY rarely actually are and will happily censor people they disagree with like LGBTQIA+ or sex work content), but that doesn’t mean you need to actively be funding them!
On KBin I believe that it is (or at least was a bug that became a feature). There have been posts about it strongly urging Ernest not to change it and he’s said he’ll open it up to discussion before making major changes to it, if my recollection is accurate.