You raise some interesting questions @Pluvia.
I agree with you that anyone straight coming along to an LGB event is off, but surely there are firm polite guardrails you can set around this without needing to exclude bi people? L,G and B are generally grouped together either because they all have same sex attraction, or because they all experience some of the same prejudices because they are same sex attracted. I don’t see how you can think bi people don’t fit into that group, unless you have totally different criteria?
Otherwise I don’t really agree.
For clarity, I am bi and married to a woman who I’ve been with for ten years and we have two kids together.
Your point about bi women in straight relationships not experiencing day to day prejudices because they pass as straight. Yes that’s probably true. But bi women do experience some of the same prejudices as lesbians, as well as some that are unique, some of which come from within the LGB community. Even women currently with men will have experienced these prejudices in the past and probably still experience some now if they are open about being bi.
So, why draw boundaries based on the level and kind of prejudice being experienced? This will also hugely differ within the lesbian community. Would a butch lesbian experience more casual homophobia than a straight looking one - yes of course? Would you say one has more right to be in your group than the other, no of course not, they are both welcome. If a straight woman chose to wear her hair very short and dress in a stereotypically lesbian way, and experienced homophobia, would she belong in your group? No of course not, she’s not same sex attracted.
Why let hostile bigots who dislike some people more than others, or make assumptions based on appearance, but ultimately still hate us all, determine who you let in?
By excluding bi women or distinguishing between acceptable bi women and unacceptable ones, you also risk doing real harm.
Coming to terms with being bi, is hard. A combination of compulsory heterosexuality and biphobia mean being bi is not an appealing prospect for many women young and old, and lots of bi women will consciously or unconsciously feel they should just be straight because it’s easier. They will feel even more like this if you exclude them from a setting where they could see women loving women being nice, normal and acceptable and tell them they are not welcome!! Compulsory heterosexuality also means plenty of women who will later identify as lesbians marry men. Are they not welcome in your group either?
You may think, well yes it is easier for bi women to just go out with only men, what is the harm. They have an easy option, so if they chose it they aren’t welcome in my group.
Would you say the same thing to someone saying it is easier to only date people the same colour as them, or the same religion, or the same social class - so they should flatten and repress any attraction or love they feel towards other people? I imagine not. Repressing or denying a part of yourself is damaging. As a teenager lesbian was a slur so when I felt crushes on girls I agonised over whether this meant I was one and used to lie awake at night visualising a hammer smashing into my head whenever I had sexual thoughts about girls. It took until I was 26 to accept that maybe it was okay to be interested in women too and I still feel some degree of self hatred about it now - because that’s how being part of a hated minority affects you - how much harder it is if that minority also excludes you. It takes many others longer to accept themselves, and many will end up with men, more if they feel excluded from the LGB world. Once I did come to terms with it, I had to content with loads of biphobia from lesbians who thought most bi women were unreliable, slutty, cheaters or in denial about being lesbians. From men who thought I was slutty, up for threesomes, or that it was a kink. And from straight women who thought I couldn’t be trusted around their husbands, or was doing it for attention.