Democrats need an identity-politics intervention. Having unleashed race, gender, sexual orientation and class as the defining issues of American politics, these furies are now consuming their authors. Where’s Barack Obama when Democrats need him?

Every national Democrat of note is demanding that Virginia Governor Ralph Northam resign for appearing in blackface in 1984 and for offering different explanations for an offensive photo on his medical college yearbook page. But Mr. Northam is refusing to go.

A second woman has now accused Virginia Lt. Governor Justin Fairfax of rape, this time at Duke University in 2000. Another woman has accused Mr. Fairfax of raping her at the Democratic National Convention in 2004. Mr. Fairfax denies both allegations and is demanding an FBI investigation, but many Democrats are also calling on him to resign.

Meanwhile, Attorney General Mark Herring, next in line for Governor if both Messrs. Northam and Fairfax resign, also appeared in blackface in the 1980s. Democrats are more forgiving of Mr. Herring, perhaps because next in line for Governor would be the Republican Speaker of the House of Delegates.

Imagine the cognitive Democratic dissonance if Mr. Fairfax, who is black, is forced to resign because of unproved accusations of sexual assault that he denies, while the two white men survive despite racial offenses that they admit.