SCOTUS long ago held that there is no right to trial by jury if the maximum penalty is not more than 6 months in prison.
The illiterate founders words were utterly clear. They could not be any more clear. The constitution was written such that any literate person could understand it.
It does not require the filter of a secret body of law. It need not be analyzed against other legal ideas.
It says precisely what it means. Arpaio’s rights are being violated.