The Southern Poverty Law Center has long been known as a far-left hate group, and now that it is under indictment for mail fraud and has been exposed as perhaps the largest funder of racist organizations in the U.S., one might expect its influence to wane. But left-wing organizations, like the teachers’ unions that control most public schools, won’t give up their allegiance to the SPLC without a fight. Thus we have this report from my American E…