I disagree - I frequently see comments about politics that are reasonable and not downvoted to death. There are also many comments/articles that do get flagged/

I disagree - I frequently see comments about politics that are reasonable and not downvoted to death. There are also many comments/articles that do get flagged/killed, and a few of those seem like they were trying to speak in good faith, but the proportion of rational, surviving political content is far higher than in other places that are not explicitly devoted to political discussions.