I think this is... fine? Am I just totally naive. I think it's fine to say "You don't really have privacy on this app" - as long as there are relatively good options of apps that do have privacy (and I think there are). TikTok is really a public by default type of social media, there's not much idea of mutual following or closed groups. So sure, you don't have privacy on tiktok, if you want it you can move to snapcha…
The logic of "anything is better than before" is also fallacious.