It is acceptable to ridicule a child if that child is from a Republican or a conservative family (see: Trig Palin, Willow Palin).
As part of its year-in-review show, MSNBC’s Melissa Harris-Perry welcomed a panel of comedians to ridicule Mitt Romney, his family, and their adopted black grandson. One panelist poked fun at Kieran Romney’s appearance compared with the rest of the family by mockingly singing “One of These Things Is Not Like the Other” as the others laughed along.
Meanwhile, comedian Dean Obeidallah joked that the Romney family photo “sums up the diversity of the Republican party . . . they found the one black person.”On the other hand, if it's a liberal family, the mocking of children that are "different" is not considered.
Reminder: Progressivism is the party of tolerance.