Those tech topics intertwined with politics wasn't what I was talking about. (That is why I used the more purely political example of "Trump denies climate change" instead of a tech story like "Facebook attacks data privacy.")
And that example is the same theme dang was explaining in a previous comment[1]:
2016-12-06 -- "We can clarify, though. The main concern here is pure politics: the conflicts around party, ideology, nation, race, gender, class, and religion that get people hot and turn into flamewars on the internet. We're not so concerned about stories on other things that happen to have political aspects—like, say, software patents. Those stories aren't going to be evicted from HN or anything like that."
dang's examples are very different from your political topics such as "professional ethics, data privacy, censorship, advertising". You'll notice that your examples are the type of topics that virtually all of HN readers will pile on the comments in violent agreement. Those topics don't create incivility. In fact, (modulo a few contrarians) they tend to foster a lovefest instead of flamewars!
Unfortunately, dang buried the "politics" clarification deep in that thread instead of spelling it out at the very top of the detox announcement so a lot of people got confused into thinking that political topics like "data privacy" and "software patents" was being censored.