I agree with the concept that groups that say they are women's groups need to be honest about what they mean when they advertise as being for women. If you remember these were the grounds on which Roz Adams won her court case. Not that she was against porviding services to TW but she was against lying to potential women service user if a support session was not going to be women only based on sex..
This is the existing guidance to funded women's groupd by the WRC which respresents women's groups. In all instances be honest.
ie many women's groups have women only services but also provide trans services along side (have never seen the number of TW users any of these services have)
And to be boringly practical as others have said, if to get funding for women only services they have to play lip service to also provide services for TW, most women's services will do that. Because in the end to able to provide services to women is their priority. And if that can be achieve by also putting on the odd session for TW they will do that.
I wonder if you have any idea how many women's services have lost their funding in the last few years. Nothing what so ever to do with TW but because the bean counters in local councils etc., do not think the cost of specialised services are justified in an era of cuts. Just try searching for the number of refuges that have been closedin the past 12 months because of funding cuts. Because councils think suvivors of domestic violence can after all get a bed space at a mixed hostel, which will include men and not have any support workers.
So in the nicest possible way I am not sure groups struggling to survive are going to respond to getting letters from individual women saying I dont think you should, as a minor aspect of your service, have something for trans women.
At this point in time, what is far worse are those organisations such as Edinburgh RCC and Survivors Network Brighton who deliberately lie to women by not revealing they are trans inclusive. ie that TW are not offered a separate service but are included in the "women only" services. ie the groups who have been Stonewalled and are deliberately lying.
Also many groups that you want to target, ie women service providers, are parts of federations such as Women's Aid England and they jointly decide policy. So if you want to target anyone you should find the federation or network contacts for which ever types of women's group you want to influence.
Or ask the Women's Resource Centre, who supposedly provide advice and guidance to women's groups why they aren't telling women's groups to be clear that if their aims and objectives for women, then they must either only provide services to women or change their aims and objectives.
WRC has already done a guidance for women's groups post the Supreme Court ruling. Most women's groups will follow that, unless they have been Stonewalled.
See https://www.wrc.org.uk/blog/sex-as-biological-and-the-impacts-on-the-womens-sector
And also the video of the training that followed this
There have already been threads about these but posted here for convenience.
If WRC was to have a more overt stand about being honest about whether a women's group really does mean women as a biological sex, or whether they mean women as a gender identity, this would probably have more impact.