“A class action that ‘seeks only worthless benefits for the class’ and ‘yields [only] fees for class counsel’ is ‘no better than a racket’ and ‘should be dismissed out of hand.’” In re Subway Footlong Sandwich Mktg. & Sales Practices Litig., 2017 U.S. App. LEXIS 16260, at *3 (7th Cir. Aug. 25, 2017) (quoting In