Sure, the argument may go, its entertainment and those would have gotten the same from alternative sources, but in this particular case, viral ready addictive video content is ultimately a bane for society.
This guy has studied 20000 to 30000 of videos, done data analysis on them, and then finetuned his videos to make them popular and earn a lot of money on it. As a business, this is genius, he is talented, he is profitable, his investors are circling around banks. But society has suffered for it.
My kid watches similar pointless videos, and he is on the verge of addiction (any and all free time he has, he jumps to the videos of colorful activity videos on you tube, from chinese or russian channels. He is 10 years old)
I am weaning him off youtube altogether, and involving him in books and other activities, but it is damn hard.