Not saying the cartoons are right or appropriate, but they're not child abuse unless actual children are molested while producing them (which I don't see how considering it's all computer-generated graphics).
I can tell a child "Ill come take your family and cut them in tiny pieces", and that's clearly child abuse.
Or I can show peppa pig raping elsa, and then bashing her brains out... There's nobody that would think that's normal to show children. And again, child abuse.
Abuse can be physical _or_ emotional.
EDIT: a few samples here https://www.reddit.com/r/ElsaGate/comments/6o6baf/what_is_el...