That doesn't matter though, because most people 'live' in this new space via Facebook, in the same way that a plurality of people 'live' in the physical world we inhabit via the nation of China (PRC being the most populous nation). Simply because of that, we cannot discount the over-influence of Facebook.

Even more poignant, Facebook's dominance in this regard is much more disproportionate than China's dominance of the world population. (Facebook having a little under half the world's population).

Even though I don't live on planet Facebook anymore, the truth is Facebook heavily affects my life. I don't see how anyone can reasonably argue against this.