Just when I thought the racialized madness of 2020 was floating away — that it had being destroyed by reason and sanity. It’s back. And on Zoom no less, the medium of choice for the crazy Covid era. With a woman of color on the Democratic ticket, progressives have fallen back on their worst instincts: performative allyship and race essentialism. Politics by segregation. Last week, Moms Demand Action founder Shannon Watts organized a massive Zoom meeting — “White Women: Answer the Call” — for Kamala Harris. On the call, which drew over 200,000 participants, reportedly raised $2 million and has...