Is every outcome inevitable based upon what precedes it, what leads up to it? What is the inevitable conclusion of the donjohn reign?

Only in retrospect. The inevitable conclusion has already been to show that there are many Americans who do not buy into a number of cherished liberal notions such as "victimhood" the notion that some people identifies as so-called "victims" do not have to play by the same rules as the rest of us thus creating an artificially tiered, "class",  society,  being ashamed of success, of vision, hard work, and sacrifice, being ashamed of the great institutions of their country, costly social experiments and artificial redistribution of wealth, discouraging religious belief, as well as the government assuming responsibilities and rights that belong to the individual.