https://en.wikipedia.org/wiki/Six_degrees_of_separation
Do you honestly believe that you can't control the whole entire world through a single friend group? Six degrees is now thought to be even less than six, due to the internet. VRChat is also a small place, but people's dunbar number's aren't smaller. I realistically predict around 2-4 degrees of separation in VRChat. Small enough to talk to everyone indirectly.