I shouldn’t comment just after waking up.

Instead of changing the symbol, we can ask the unicode committee to put the current fediverse symbol in the unicode.

Fediverse isn’t for privacy or to get your content siloed, it’s main purpose is to … federate with other communities, send all of the public data to other servers.
If people don’t want that, they should use a good old forum, not a fediverse social network.