Maybe I misunderstood what he said - but I think he meant that all toilets should be enclosed cubicles, single room, floor to ceiling door/walls, toilet, mirror, sink, like most disabled toilets.
Why? So Izzard gets validated by using the women's but they all have to change to keep women safe? From what I wonder?
Up until now, women haven't had to be in a fortress, with floor-to-ceiling walls and their own sink and sanitary bin. However luxurious that might be, it's been entirely unnecessary.
The reason toilets are not generally like this is that if someone passes out in them, (during a miscarriage, for instance), they can easily be reached. Or if they are being held inside them, it's harder to keep that quiet with gaps above and below.
I'm not saying women wouldn't like their own enclosed space, but they are generally held to be not as safe, and why should everything have to change, just because some men need validation?