Honestly, we've been comparing various movies—including Sing—to Zootopia for awhilenow, so this is a strange place to complain about it for the first time. If somebody wants to say that a movie would have been better with a more timely political message, I can think of few better examples than Zootopia. Sure, Happy Feet had a message, but it's also from 2006 and was nowhere near as popular as Zootopia, among furries or among mainstream critics.
Honestly, we've been comparing various movies—including Sing—to Zootopia for a while now, so this is a strange place to complain about it for the first time. If somebody wants to say that a movie would have been better with a more timely political message, I can think of few better examples than Zootopia. Sure, Happy Feet had a message, but it's also from 2006 and was nowhere near as popular as Zootopia, among furries or among mainstream critics.