It's the technocratic or perhaps "enlightened centrist" tribe. There's similar vibe in the post, and even though there's some introspection about the author's own tribe, he doesn't seem to question whether his political thinking could be tribal.

It's indeed typical for this tribe to off-hand dismiss thinking that they deem somehow "ideological" without even really trying to figure out what the thinking is. Also a lot of self-congratulation, exceptionalism and motivated reasoning is exhibited, but these are typical features of any tribe.