The one I was invited to attend in Oldham which was a Muslim women's safe space has to be exclusive. If you don't understand why then there is really no more I can add to that.
I am absolute fine with safe spaces for whoever requires them, they are not compulsory and what happens within them should be confidential. If you want your own exclusive safe space I will totally respect that too. Because as much as you hark on about this being about race and it being divisive I will argue it is not, its necessary because people like yourself, Fox and his assortment of cranks think they are divisive. If you are unable to find it within you to respect the needs of a disparate community then don't, carry on with the Fox agenda, because his agenda has nothing at all to do with the rights of the working class and everything to do with division of the working class under false pretence. There are a myriad of reasons why certain groups would need a safe space in which to discuss and debate issues and be empathetic with each other. These reasons could be anything from sickle cell anaemia groups , to the Freemasons, from Male only clubs, to disabled only swimming pool times. To put everything under the broad brush stroke of "exclusion" is ridiculous and divisive in itself, because what you risk is far worse than what you are complaining about. Making everything open and inclusive to everyone totally defeats the object of the safe space in the first place and that risks further alienation, disrespect and misunderstanding of some very important issues that may affect some people but not others.
For instance lets return to Sainsburys. The young black girl on the till is racially abused by a big fat 50 year old EDL clown who tells her to go back to Bongo Bongo land, she is upset and is in tears, if she then retires to the safe space to calm herself does she want the young white lad there who is totally against her having a safe space and has never been abused or does she want the old Black lady who suffered abuse 40 years ago from an NF skinhead and has learned coping strategies in how to deal with halfwits.
If you can honestly say the young white lad is in better position to help the young black girl than the older black lady then i would love to hear your reasoning behind it.