Isn't this like... the whole point of the Federated Universe? The mods do Beehaw want their server to be a "safe space". They're perfectly within their rights to restrict who can post in their own community. But you, the user, are not in any way beholden to their whims, and can make an account on any other Lemmy instance, or create your own and make it as restricted or unrestricted as you please.
It seems logical to me that the creators of a safe space for marginalized communities would restrict their community from the internet at large because people on the Internet feel emboldened by anonymity to attack others.
grus