Totally agree. It's always super amusing to me when people argue that we need to get rid of e.g. Facebook because it's stifling creativity. The problem isn't Facebook, it's the fact that average people want to be (or feel they need to be, which sums to the same thing) on the biggest platform.

Facebook's existence isn't preventing other social networks from taking off, human nature is. Go start your own social network, I guarantee the Facebook police will not kick in your door and shut you down.