No, there isn't.
It's a algorithmic money-making scheme where people take advantage of popular YouTube content titles like spiderman+elsa+babies+poop jokes and then mash them into one abomination of a video to increase those subscribers. >Why do they actually make these weird videos?
Well, YouTube has a policy where the video must match the title so they get a few cheap halloween costumes and record themselves doing stupid crap. >Why target kids?
Well, kids content is popular and I'm sure that they aren't the only people in the world who put aside their morals to make a quick buck. >"But...but... it's wrong and not for kids!"
I don't disagree with you there. Kids should not be watching this crap, but unfortunately their videos kinda hang in a grey area where it's hard to justify what exact laws or content rules they are violating without trying to justify with "muh feels". The titles are misleading nobody, so as a parent it's your responsibility to make sure your 5 year old isn't watching a video called "Elsa baby poop fart on pregnant spiderman". If you're allowing your 5 year old to brows the internet without supervision, even with parental filters, then you're a shitty parent. Those filters aren't intended to block content that might be inappropriate for toddlers, they're designed to prevent your 12 year old from watching porn.
Whatever, you're just going to dismiss me as a paid shill anyway. I don't know why I try to explain this rationally to you. You only want evidence that fits your narrative and will never bother to cross-examine any of your sources. Keep that foil hat tight, my friend.