Antimeta is gonna be a thing. I think that things like SL, Sandbox and Decentraland have a better chance of succeeding in continuing building an open metaverse.

Maybe we need something like an http/html standard for the metaverse?

Heck, even commercial offerings built on top of Ethereum sounds much better then built on top of Facebook.

To me it's like Microsoft in the 90s trying to claim they can build a better proprietary Internet... In that sense its actually pretty scary, so let's hope Zuckerberg and his unethical leadership isn't the one to succeed since given past track record its not gonna be pretty.