The software is heavily based on the author's political views - and allows the author to shape the network into whatever they want, being based on a system of "digital landlords" who have significant control over the users who work on their "land" - so it makes sense to look into said political views.

Yeah this whole thing is completely politically motivated.

I'm not sure where you're getting this. The system is explicitly designed such that the author can not ultimately shape the network into whatever he wants. The only real control stars and galaxies have over the rest of the userbase is that if you want to send a packet to someone who you don't already have a direct connection to, you need at least one star willing to route your traffic. The ownership of these pieces of network infrastructure is intentionally fragmented to prevent the kind of control you're talking about.

What you're describing sounds more like the web as it currently exists under the benevolent rule of King Verisign.

Nope, I said that Urbit is an explicit instantiation of his political views, which is a claim which I don't think Yarvin would contest.

He's stated this outright.