What do people think of "The Servile State"?

Wilhelmson in ISI, circa 1978:

But The Servile State still runs through edition after edition and men today still ponder the sobering thesis advanced by its writer: there is no liberty, political or social, unless there is economic liberty, which means the restoration of property, not paper property owned by usurers, but real property owned by proprietors, by men who in one fashion or another eat and drink their own. Nothing less is worth the dignity of Christian men.

I am currently overwhelmed by this book.