Grimarse, the reason it appears 'niche' and not at the forefront of the public consciousness, is because it is happening under the radar. Yes, it is largely confined to lots of debate/articles/consciousness raising etc on the internet rather than a wider discussion, but that will change.
A white paper has been submitted to the Govt for consideration into law, which, if passed, will massively erase women's rights to safe spaces as they will, effectively, be opened up to everyone.
I'm not going to go into detail as it would be too derailing, (google Maria Miller and the Equality commision white paper if you want to read it) but it's the reason so many of us are extremely concerned.
Of course it's off the male radar in the main, because it simply doesn't affect them. Although if you have a wife/girlfriend/sister/mother/grandmother/aunt/neice/daughter, it will affect them so the radio silence from men is a bit disconcerting. Hence it is nice when high profile men like McEwan wade into the debate.