I take self-evident in this context to mean that you are not willing to provide a moral argument.
God said, "thou shalt not suffer a witch to live." I therefore take it as self-evident that old women without relatives to care for and vouch for them should be dismembered and burned in public.
This is, I aver, not a sound basis for making public policy decisions in a representative republic that eschews church involvement in the state's business.