It is possible to talk about these topics from an academic perspective and it feels like banning it for a week is equivalent to putting your head in the sand and ignoring it because its too hard to have a conversation about it. This is exactly the behavior I was motivated to try and change in myself (stick to tech only, ignore other issues).
Yes, its very difficult to talk about some politics in thoughtful ways but I would hope a community like HN has the people needed to try and address some of the issues coming up. Be it technical (detecting fake news, biases, etc) or intellectual commentary.
I've also been actively working on engaging constructively in difficult, contentious conversation. HN is one forum. If politics is on area that's generally avoided here for the benefit of quality discussion on other topics, there are other forums where one can. And perhaps after a detox week (or two?), constructive political might work on HN. I certainly hope so, but am also aware of how difficult that can be in person, and even more so online.