Even amid an all-consuming global crisis, Mrs. America, the new series from FX on Hulu, was guaranteed to become a media event. After watching six of the nine episodes—the only ones available as of this writing—I can attest that the attention is warranted. It’s a lively, superbly acted, cleverly structured ensemble piece about the 1970s battle royal between feminists and Middle American housewives over the Equal Rights Amendment. It has timeliness going for it, too, illustrating the straight line between the populist forces mobilized by ERA foe Phyllis Schlafly and those that sent Donald Trump to the White House 40-odd...