This is a concept I struggle with. HN tries to be culture and politically agnostic, but culture and politics drive everything. I think it's intellectually lazy to suggest that this shouldn't be a place for smart people to discuss important issues because the reality is that those places are woefully uncommon.
Begging for forums and content to be apolitical is just willfully wearing blinders. It may be great for mental health, but it's probably not great for society. It's on the same philosophical slope of "I don't want to be political, I just want to make great bombs for whoever."