Something like that has been said about every technological advancement ever created.
Adolescents who don't have Tourette's are displaying severe tics from TikTok use [0], for just a start.
[0] https://www.wbur.org/endlessthread/2022/06/03/tiktok-tics
Arguably, the great part about TikTok isn't the content itself but the recommendation algorithm. It's really good at showing you new things that you wouldn't have looked at on your own, but that are still interesting to you.
Youtube shorts is getting closer though, TikTok can't keep their edge forever.