The commenters insisting that this is the wrong call don't seem to have fully taken in the intended purpose of this site, because they're actually making a case in favor of the flags, not against them.
Btw, it's not true that every political post gets flagged. HN's approach to that question has been stable for a long time, even though there can be strong disagreement about specific calls. If you or anyone wants to read about what the approach is, there are lots of links at https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so.... In particular, https://news.ycombinator.com/item?id=22902490 and https://news.ycombinator.com/item?id=21607844 are good places to start.