I mean, I am both clever and funny as it happens but what I wrote was utterly ridiculous (and threw in a few stereotypes for fun).
Why is it ok though for one person to say that lesbian to them means will sleep with some biological males but not ok for me to say it means sleep with only biological males? Where is the line if the line is self defined? You obviously don't think it's ok for me to define my sexuality if it's as I described, as lesbian- why not?
I don't think it's ok, because it would be erasing lesbians, it would remove the ability to clearly state your sexuality if anyone else could just self define into it. It would make it meaningless in terms of protection against say discrimination if anyone could say they were lesbian based on their own sense of their sexuality no matter who they actually sleep with.
People should be able to sleep with who they want, dress how they want, feel however they feel. In a perfect world where we were all equal this would be fine and we could just get rid of all the categories for people and just be people. This isn't the world we live in though and various groups are oppressed, discriminated against or have challenges due to their biology / health etc. or even just have specific needs and interests. To be able to discuss and meet the needs of those groups of people we need to be able to name them and clarify who is in that group. Those groups should be able to meet together to advocate for themselves. Groups might include lesbians, women, people with disabilities, carers, trans people, people from various religions, train drivers, nurses...
Can you really not see how to at least a group of lesbians redefining their sexuality to include biological men might feel like erasure and even homophobia? And allow there should be safe space for these women to discuss this?