I think it's a shame that you don't make any attempt to engage with the usage of the term in the US, and I think the several articles complaining against the term as being in itself inherently misogynistic by women whose work I normally like a lot (Hadley Freeman, Sarah Ditum, Meghan Murphy) is quite disappointing.
There are two things going on here - the weaponisation of a 'meme' by white men in the context of the TERF wars, and the (very much more widespread) use of the term as a cipher for class and race privilege. Now, maybe the latter use is not seen so much because women on the receiving end of the first use are in one bubble and the more widespread usage is in a bubble talking about race/class privilege that lots of women in the first bubble aren't engaging with.
Maybe it's lazy to use a name-as-cipher, oh well - blame popular culture, it sucks. And yes, it doesn't necessarily travel well from US to UK because name connotations just don't.
If you aren't incredibly deft in how you disentangle those different uses and histories, it just looks like you're complaining about people pointing out race and class privilege. Which is pretty awful. Take a look at the threads about Amy Cooper on Mumsnet, for awful displays of totally missing the point because oblivious to racism/actually racist.