At this point, the admin stopped responding to my messages despite being active elsewhere on lemmy.

This is not true though. This was clarified by the feddit.uk admins.

I was the Admin who was contacted by Ada and that is a mischaracterisation of what I said. Our rules still stand that we won’t allow transphobia.

Unfortunately, as the ruling on the interpretation of the law has recently changed, we are going to have to figure out how we approach this and that is going to require a consensus amongst the Admins, and an agreement on our wording going forward.

This is going to take a bit for us to work out (although not too long, we’re getting there, I have been active on Lemmy but I don’t call the shots, and we need input from all Admins) and if, in the meantime, LBZ feel we aren’t moving fast enough and they need to defederate from us then that is obviously their right.

https://lemmy.dbzer0.com/post/42943344/18287800