I agree that the combination of ignorance and arrogance is particularly dangerous.

As I see it, we are seeing most fundamentally a misdirected disillusionment with 'the rational' (as postmodernists like to put it). Supposedly 'rational' ideologies--led by Liberalism--have proven to be in reality secular religions, based on secular as opposed to sacral beliefs (or at least beliefs that can be secular or sacral). They have therefore proven to be no more capable than religions have been of making governance (in the context of human beings living together in societies) something other than an unadulterated "contest of power" (M. Foucault). Moreover, all ideologies, including Liberalism, have over-promised and underperformed in the practical matters of material life. As a result, what we are witnessing is the triumph of 'feeling' (though many people refer to religion to justify their feelings).

The alternative would be a truly rational approach to how the governance of society should be governed that involved no belief (secular/ideological or sacral/theological) at any point. I have fully developed such an alternative. If curious, "Can't Get Any Simpler" is a "2 min read" here in Medium with links to other essays on the topic. (Nothing I publish here in Medium is behind the paywall.)