write them an email https://royalsociety.org/about-us/contact-us/

looks like you guys just damaged yourselves by not taking disciplinary action against Musk. whilst I have nothing to do with you, you guys should know better than to sympathise with Nazis. It makes you the same as them. The US is broken and you have the chance to stand on the right side of history or the wrong side of history, and you will be judged by your actions. and science will suffer your actions/inaction. sort it out or are you just a bunch of Nazi cowards?