The time has come, i gotta character analyse the evil monkey, now some of you might be thinking "but plagued! He's just an evil nefarious monkey! What is there to possibly analyse?!" WRONG! Now, going to mojo jojo's backstory, one thing stands out, Professor Utonium having a "pet" chimp running wild in his lab- which brings up one big question.. JUST HOW THE HELL DID HE END UP WITH JOJO?!
Of course, having a pet chimp is illegal, as they're wild, strong and terrifyingly intelligent animals, which warrants only one explanation. Jojo was a victim of exotic pet trafficking, and was likely taken from his mother far too prematurely, thus explaining a lot of his behaviour. Am I being way too logical about this children's cartoon? Absolutely! but shhh let me character analyse- of course I hear you say "but plagued!! He wants to kill those preschoolers!" Well i propose to you this, he may far outdo the girls academically, but he's extremely emotionally stunted, and on the same level if not WORSE than the girls emotionally! Should he be angrier at professor utonium? Yeah probably, but that monkey has issues
(Also rationally i think he knows those mutant children are basically indestructible)