It was probably supposed to be funny back then, but...
It's amazing how insensitive people were back then.
And trying to use cartoons to impart cruelty, just no. This dog cartoon implies it's perfectly legit to inflict bodily harm, torture, and impart permanent mental trauma on someone.
Of course back then, those concepts wouldn't have been as likely to be in the public thoughts. There was also little psychological counseling for people who were damaged by such mistreatment, nor were there institutional protections in place. It was just unthinkable.
When you think of all the new creations that had few protections like GFI outlets, and proper fuse panels.... it's not wonder the death tolls were so high and why some of our relatives look, act, and talk like they've lived through hell. They did.
Disgusting.