I don't really get that impression. A lot of DHH's blogposts are simply delusion, and have no bearing on reality whatsoever. Posts like his Calling someone a "nazi" is a permission slip for violence is simply untrue no matter who you are or where you live. Discrediting that type of opinion doesn't require you to disagree at all, just to point out local laws to people.
There are likely places where the OP and DHH disagree on matters of pure opinion. But calling his essays "the worst possible takes" is pretty close to objectively true when he's calling for violent witch hunts against the people who disagree with him. He's the one that needs to apologize, there's nothing wrong with drawing the line at violent threats on behalf of your community.