I agree with your sentiments, but I think you may be arguing against a straw man for Facebook. The smart move would be to break them up along business interests

I agree with your sentiments, but I think you may be arguing against a straw man for Facebook. The smart move would be to break them up along business interests. The social network would be the same, but split their hosting off, and require messenger level access to internal APIs. I would imagine there would also be focus on ensuring that there is a way for competition to form around features like marketplace. Again, probably API centric. Does this make sense? I'm not sure. But I think it would be easy for a set of programmers to redefine Facebook as more free market than it currently is.