I guess we could regard the “Deep State” as the government portion of Burnham’s managerial elite.
I imagine that he would have admired Trump as someone striking a blow against the managerial revolution; to me that’s why Trump is so hated by such a wide assortment of entrenched and privileged elites; Republicans, Democrats, media, big tech.
He would probably not be surprised by how things have turned out. Certainly Sam Francis wouldn’t be.