Manipulative tactics are the norm in political emails: Evidence from 100K emails [pdf]

Platforms that support downvotes (including HN) are prone to groupthink and vote bullying. Going against the popular view--either site-wide or against the popular view of the people who access a given comment thread--will result in downvotes even when posting material that's factually accurate. This tends to create a self-amplifying process where established views become more entrenched and, possibly, more extreme.

For example, the majority view among people who access COVID-19 posts on HN is that the disease is not a major risk. Anything posted to the contrary is highly likely to be be downvoted and/or flagged for removal. This drives away factual information in favor of groupthink and creates nothing more than a single-sided echo chamber.

HN is no better than Reddit in this regard; it's just that the groupthink hot buttons on HN are different from those on Reddit.

As this view itself is a view that runs against the universally accepted wisdom on HN, this post itself has already been downvoted and will likely be downvoted further.

As a matter of personal ethics, I only downvote material that is socially hazardous (e.g. COVID-19 misinformation), seemingly inorganic, or seemingly dishonest. Being wrong in good faith isn't a karma crime and shouldn't be punished. Unfortunately this is far from a universally accepted perspective.

With regard to why both-sides-bad arguments are not well received in the context of US politics, I feel newen covered most of that in his/her reply to you. However, I will add that 'both-sides-bad' has a really long history of being used disingenuously by the right wing, both directly and by paying left wing fringe candidates who use 'both-sides-bad' messaging to split the Democratic vote.

Both sides are indeed bad (see: e.g. Obama's execution-by-drone policy), but one side is far worse than the other (see: e.g. Trump's children-in-cages policy) and 'both-sides-bad' is usually used by the right wing as a way to trivialize Republican abuses. People who pay attention to US politics tend to be aware of this and will be less inclined to give 'both-sides-bad' comments the benefit of the doubt.

Further, on the question of respect for democratic rights, the factual history of voter suppression in the United States is so black-and-white (literally: it's a history of white conservatives preventing black people from voting) that anyone who does a 'both-sides-bad' take on this is either grossly uninformed or dishonest. Neither option will be well received by people who pay attention to these kind of issues.

Democrats have been marshaling their forces since then, and are trying for a repeat of the 2016 strategy, only they are all-hands-on-deck this time.

Republicans have spent the past four years trying to come to grips with establishing operations in a hostile territory (Washington D.C.).

The state of the Democrats feels pretty clear to me, but it's super hard to get a read on where the Republicans are right now. Fog of war is thick, and we won't really know where things are going until November.