I don't think it's bad because as you said yourself, they are cartoons.
Do you think that drawing a character being killed by another is wrong? Is it murder? Then why drawing a cartoon kid naked woud be compared to taking a photo of a real naked kid?>>2019309
Nope, it's not wrong at all and if you really think it is, then you should see ANY drawing depicting an illicit act something equally wrong.
Why would this nonsense logic apply to certain real life crime an not to others which can be far worse, like murderer?