Dang, We get you’re frustrated but he’s just stating his opinion. It’s not out of line relative to the other discourse in this thread.
The question "has an account been using HN primarily for political or ideological battle?" is one of the most important criteria we use in HN moderation. When it is the case, we ask an account to stop and/or end up banning it.
This rule has many advantages. One is that it's a reasonably objective call to make (and for readers to verify) regardless of the specific views a user is arguing for or against. Another is that it allows for a certain amount of political and ideological discussion (as long as it doesn't break the site guidelines in other ways, of course: https://news.ycombinator.com/newsguidelines.html).