But the genie is out of the bottle that there are males who will determinedly go into female only areas and who are likely to kick off at female staff if they encounter any boundaries that protect and respect females. This is now an entitlement, there's online support and social media where male people egg each other on and remind each other this is their right and that females who say no are dehumanised scum who don't matter. Mr Izzard is helping considerably in making this socially appropriate as a celebrity, using his power for good. And we've all seen the footage of a large, angry male screaming 'call me ma'am' into the face of a frightened shop assistant.
There is in reality no way to send staff to deal with this behaviour. It isn't safe to.
Which in effect means that female exclusion is successfully achieved and will be until the government stands up and makes it very clear that no male may enter specifically female only spaces, and that male choice and preference of provision is not more important than female access to anything at all. And that male people who believe it is are behaving in a way that will not be tolerated.