China has passed a law to allow user to disable algorithmic recommendations. It probably is not in place yet, but that's may be something you are looking for.
What is really want is a algorithm that does the opposite of what current social media does. "You liked this content? Here is some content that is on the opposite side of what you might like, just for you to discover new stuff", but that's less about regulation and legislation and more about companies willing to do something different than the rest.
sounds like you just want to a different product. This is interesting by the way. I wonder how easy to use platform as a content source and run your algorithms on top of it to produce things you like. Maybe they will never expose their data, but it is interesting to think about it though.
IMO, the big problem of this world is fueled by the "like" button concept. The internet would be a much nicer place if we replace "like" with "dislike". "like" typically push people to the extreme, and "dislike" will push people to the middle.
