"I am an unswerving advocate of freedom of expression, which is guaranteed under Article 19 of the International Covenant on Civil and Political Rights (ICCPR), but it is not absolute. Article 20 of the same covenant says: ‘Any advocacy of national, racial or religious hatred that constitutes incitement to discrimination, hostility or violence shall be prohibited by law."[0]
As so often, different values are in tension with each other. And different societies draw the line at different places, somewhat favouring one or the other value. I hope we can agree that 8-chan, due to the lack of sensible moderation, is way past that line by all standards.
[0] https://www.theguardian.com/global-development/2015/apr/24/k...
Edit: to clarify, this is not meant to be a strawman. By "some", I don't mean some here or alike, but those in 8-chan , TD, etc., who have brought forward this argument in the past.