Nah, Libs are like this everywhere. The self righteousness, the aggressive ignorance, the near absolutely inability to recognize their own limitations, the incuriousness. I think it's mostly a consequence of living in a hegemonic cultural and media environment where they never encounter any meaningful challenges to their world view. Liberalism is all they know, and the only thing outside of it that they even casually encounter is fascism through the lens of Lib media venues, so they're just completely unprepared to critique their own beliefs or situation.