You could not be more wrong in your you remark concerning this statement. This is a very import and fundamental truth; practically a tautology. Alternative explanations for such "sequences of events" are offered all of the time. One can not be proved "right" and the other "wrong" simply "from the facts". I don't share Hoppe's confidence that "theory" can clear up the matter beyond all doubt; it can certainly contribute to our judging the relative plausibility of two competing interpretatations.
Hoppe's system, a castle in the sky worthy of Rousseau, Marx or Heidegger, will not alter the nature of the men and women who populate it any more than the reckless ideas of those three "thinkers" created a "noble savage," a "new soviet man," or an "Aryan übermensch." Jefferson captured the problem quite well when he wrote in 1798, "let no more be said of confidence in man, but bind him down from mischief by the chains of the Constitution." The Constitution--a document created by consensus and legitimized by the ballot.
As I said, Hoppe is a wack-job.