Did you even read my comment? What do you say about the issue of harmful federation network effects or corporations' incentives to embrace, extend, and extinguish?
People are just too stubborn to even think about switching services. We need to keep this bar very much low, so it is easier for them.
Lemmy is not a corporation, it is an open source decentralized platform. There is no inherent reason for the platform to try and get as many users as quickly as possible. And if we did federate with meta, that would only hurt the prospects of getting new users because users on meta who like the idea of federation wouldn't feel the need to make a new account because they'd already have access to the fediverse through meta's servers...
I can see something very similar happening to lemmy, where instead of letting communities grow naturally on separate instances into hardened, well moderated, popular communities, facebook's version of "lemmy communities" will take over the All page for everyone, all the time, with facebook-controlled content, simply because their userbase is so large that no other lemmy community could compete with the upvote counts. That's just one way network effects could screw us over, who knows how many different ways facebook could extend and extinguish the decentralized nature of lemmy like google did to XMPP...
Shopkeeper: Starts having an existential crisis, and then destroyes their store to be the founder of a shady tech startup