I have no idea how you can do this, all my friends are on FB and that's my only way to keep in touch with them. I just use messenger so I don't really see the downsides that everybody is talking about here.
FB messenger censored the private message and refused to send it, claiming it was against “community standards”.
These sorts of logged-forever, censored platforms are absolutely chilling speech, person-to-person, even in DMs, and you wouldn’t even know when it happens to messages sent to you.
https://twitter.com/atomly/status/1309632274908946434
> that's my only way to keep in touch with them
That means that you can’t communicate with them, even in DM, in a way that’s not logged for and filtered by a remote party whose interests are not your own. It’s only a matter of time until this is abused by the state.