Facebook was bad, Instagram was worse, but TikTok is downright freaky. It's like each additional layer of multimedia added to social media amplifies whatever mental toxin these platforms feed people.
Edit: as a sibling notes, this particular challenge appears to not actually exist:
I constantly have to remind myself that TikTok is a Chinese owned company and while a video like this would be banned in China the algorithm amplifies anti-social behaviour like this in the west.
When I see kids around me watching videos like this, I make sure to remind them and their parents this is deliberate propaganda.
When Facebook/Insta does it the motivation is money. When TikTok does it the motivation is political.
Edit: as a sibling notes, this particular challenge appears to not actually exist:
https://www.snopes.com/news/2021/10/07/slap-a-teacher-challe...