U.N. reports on Israel sometimes remind us of the classic Monty Python sketch “Nobody Expects the Spanish Inquisition!” with its screwball combination of comic ineptitude and malignant predictability. So it is with Monday’s inquisi—er, “Inquiry”—by the U.N. Human Rights Council on last summer’s war between Israel and its terrorist enemies in Gaza.

The 183-page report, from former New York state Justice Mary McGowan Davis and Senegalese lawyer Doudou Diene, purports to be even-handed by citing both Israel and Hamas for possible...