I've never been much for the word "tribe." It sounds too insular in 2018, the kind of term (see also "zeitgeist", "heteronormative", and "schadenfreude") thrown around by barely literate postmodernists with their heads in the clouds believing what they tell each other as the real world passes by.
That's not to say it isn't an accurate description of science media.
We certainly have tribes: There are progressive ideologues in large media corporations denying reality as they frame science belief (and denial) through their politics; there are academics who believe the public simply have a deficit of information and showing them some Powerpoint slides will fix it; we have zealots who believe every skeptical question must be met with fire and brimstone.
Heck, we have...