There are no "strategic blunders" for Trump, his base unaffected by such logical things, their personal loyalty (and Republican submission) much like that of Hamelin's children for the Pied Piper. What's not to like: a loud, crude reality show barker with a dash of bigotry here and misogyny there, his comically inept leadership irresistible to half-wits. No wonder our own rednecks so adore him and gaze southward in envy. 
In a hopelessly dumbed-down culture, the "MSM" with its real journalists is no match for the "LBM" LameBrainMedia of Breitbart/Infowars and the like, the blogging amateurs of the far right. If history is cyclical, the Trump era will one day be seen as the bottoming-out of American democracy. If not, he and his mob will have the honour of personifying the great American decline.