To those mentioning the issues that Muslims will face, this is indeed more likely to garner attention than the issues all women will face.
About two years ago, I had my Lib Dem councillor over for a cup of tea. I wanted to talk about my city council's enthusiasm for mixed-sex toilets. She was with me for an hour and a half. Her eyes were completely glazed over as I went through all the reasons why this was a serious fucking problem: risk of assault, discomfort for girls and women menstruating, privacy issues, trauma for girls and women who have been previously abused...all of it. It was like she was comatose while listening to me. It was disturbing, actually. Then, towards the end, I mentioned Muslim women, gently suggesting that such arrangements could literally obliterate their access to public toilets. Her eyes cleared instantly, she sat straight up and said, in an excited voice, 'that's a good point! I will raise that with the party!' She had miraculously revived from her cabbage-like stupor.
It's cynical as hell, but it might be worth pointing out the religious issue while we wait for people's brains to de-jellify.