If someone is looking for a place that has “everyone” then the fediverse is not going to be the place for them.
The important part is that there is enough people here that the network is healthy. Overpopulation is as bad for the network as underpopulation.
If someone is looking to connect with their relatives and close friends… Call them! Send some pics in the group chat. Shoot them a text and ask how they’ve been. The best part of getting off corporate “social” media is actually getting to socialize with your contacts again!