Confession time: I'm an optimist, especially about the ideas of social progress that emerged in Europe at the end of the middle ages and became mainstream in western politics in the early 20th century. I called the outcome of the Brexit referendum wrong (by underestimating the number of racist bigots and Little Englanders in the UK population: Brexit is a proxy for English nationalism, which is absolutely not the same as British nationalism), and I called the US presidential election wrong (underestimating the extent of gerrymandering and micro-targeted black propaganda driven by data mining in the campaign).
Since January 20th we've seen a degree and type of activity emanating from the new US administration that is markedly different from anything in my politically aware lifetime (loosely: since Reagan). Blanket bans on entry to the USA by anyone associated with certain nationalities, mass firings at the State Department, a president railing against a "so-called judge", the head of the Joint Chiefs of Staff being booted off the National Security Council and replaced by a white nationalist ideologue, and a former CEO of Exxon in the Cabinet: what's going on?
Let me pull on my pessimist's hat and advance the most scary hypothesis I can imagine that explains the current situation.
Please note that the following scenario assumes that what we are witnessing is deliberate and planned and that the people in Trump's inner circle actually have a coherent objective they are working towards. (I desperately hope that I'm wrong on all counts.)