The parent comment is telling.
I agree; it is an abdication of our responsibilities to our communities (Internet, countries, world) to say the current political situation, including the lack of intelligent and productive interaction, is not our problem and to abandon the field. Hacker News is an ideal community to develop technology and policies that would make political discussion work, and then which could be duplicated elsewhere (and arguably many people here are directly responsible for the currently poor performance of online communities in this regard). Rather than give up, people at HN are accustomed to taking on problems that others assume are intractable, and are comfortable and flexible enough for experimentation. Imagine the effect success would have on the world - is there any app that would have a bigger impact?
At the same time, the unfounded assertions and exaggerations ("horrible", "aggressive censorship", "unabashedly", etc.) in the parent are, IMHO, the kind of communication that causes political discussion to fail.