> It often feels like there is one prevailing slant on this site and those of the majority are free to push their views while the rest of us must either read it and ignore it or face the onslaught of downvotes if we express a dissenting opinion.
Are there any online communities where their political opinions match more with yours? Why don't you hang out there instead? I realize that's reinforcing an echo chamber, but it sounds like you're looking for more of an echo chamber, right?
> even though I have made my points in an informed and respectful way
Maybe an example of a time you made a point in an informed and respectful way only to be downvoted and derided would help clarify?
> Unless HN can figure out how to give fair treatment to minority opinions, it's best to exclude these discussions entirely.
I strongly disagree. I don't know what "fair treatment" means, but if enough people on the site feel a topic is worth talking about, we should talk about it. Specific incidences of abuse should be flagged, but again, it's hard for me to say one way or another without examples showing what you mean.
As to the overall question of whether politics should be allowed on HN, HN started as "Startup News". It's always been a site about entrepreneurship, mostly in the tech industry. Entrepreurship is intimately linked to politics in obvious and non-obvious ways. Politics has to do with taxes, healthcare, immigration, legality of certain types of research, market size and access, shifting demographic trends, financing sources, and much more.
Edit: I removed a final sentence because it's moot and doesn't add to my actual argument.