Had a brief meeting with some of leadership team at school and they really get it!
I sent them the links to new government guidance and the Safer School's Alliance breakdown and they postponed a staff training session to look into it. They did some research and are now dropping one of the outside agencies they are using for RSE.
I had no idea parents had so much power to change things! Keep on keeping on! 
And [heart] to all the teachers out there dealing with this.