Feminists fail to amuse

"His accusers were relentless and, as always with feminists, humorless."--Harvey Mansfield, on Summers vs. Harvard feminists.

Writing in that well-known Onion rival, the Weekly Standard, the anti-PC professor Harvey Mansfield declares feminists--all feminists--"humorless." I'm wondering, then, which political subgroup Mansfield finds more amusing. And no, unintentionally amusing doesn't count.