Interest and Usury

In the U. S., Usury laws vary from state to state, from context to context.  So, generally recognized is that Interest-charging can inflict harm on a borrower, and implicit in a set rate is that it is a threshold of such harm.  But, if 10% is harmful, why not 9%, or 8%, or, indeed, any rate?  Thus implicit in the very existence of these laws is an essential malignancy in the practice of Interest-charging, ignored only arbitrarily.  In other words, they reflect that Interest is essentially usurious, i. e. at any rate.