Commentary This is the season of abortion alarm. On Oct. 2 abortion-rights activists led a Women’s March focusing on “reproductive justice” in some 600 municipalities across the United States. The total number of participants nationwide—in the tens of thousands, according to the march’s spokespeople—was nowhere near the estimated 1 million that the original Women’s March, protesting Donald Trump’s then-brand-new presidency, drew in January 2017. Still, the major Oct. 2 march attracted such celebrities as Jennifer Lawrence and Amy Schumer. Partners included the Planned Parenthood Federation of America, the nation’s largest abortion provider, the Abortion Care Network, a trade organization for freestanding abortion clinics, and a range of feminist and other liberal-leaning groups. As such, the nationwide marches may have represented grassroots liberal opposition to a rash of recent state restrictions on abortion. So far this year, state legislatures have enacted about 100 such restraints, according to the Guttmacher Institute. But …