Things I really think we need to rollback include social media, which on paper seems like a good idea, but doesn't work well in practise. The same goes (highly) commercialized TV. The 24 hour news-cycle isn't providing any real value, but is still immensely harmful. You can just avoid those thing, but many people can't, they are mentally not equipped to do so. Even those of us who think that we're in control of our media consumption will often catch ourself slipping.
We've created a world that we can't mentally handle, but we're not willing to rollback the inventions that are clearly harmful, because they are profitable and we're bored. We can barely manage gambling, we not even trying to manage or just label media.