[Nasrudith]

Haven't we learned from the death of Socrates that "good/bad for society" is a terrible and meaningless metric as it is so values dependent?

All of those things already exist by the way - Google ironically can help you find it but so can most other search engines. There are plenty of paid providers in addition to roll your own and many anti-spam solutions. Fairphone/Freephone or even just some unlocked down Androids will run whatever you want and can, federated social media like Mastodon has all sorts of stuff that wouldn't be approved of by the mainstream like niche pornography.