> most arguments on social media are...
... detached from any real trust system.
"Social media" is not social. As a business, it is the monetisation of strife.
As an exchange of ideas, social media is (as you say) mostly people flinging words at one another.
To be "social", participants in social media would need to manifest commitment to real solutions and people would be accountable for their words and deeds. This is how human society works. There are social consequences in real social exchange. It is a trust system.
I propose that the reason why we hear of people's long-time friendships and family ties collapsing is because those social ties have simply become weak. The pretext for the rupture doesn't much matter.
> To star-man is to not only engage with the most charitable version of your opponent’s argument, but also with the most charitable version of your opponent, by acknowledging their good intentions and your shared desires despite your disagreements.
This is an excellent approach. But it depends on the trust system of real society.