Apple says it will remove services such as FaceTime and iMessage from the UK rather than weaken security if new proposals are made law and acted upon.

I’ll be damned if we’ll have to thank the UK for getting RCS normalized.

This has nothing to do with RCS from what I read on the article. It looks like the UK wants to be able to tell companies to disable security features such as End to End Encryption so that they can view the messages.