Hi, OP.
Firstly, here are a few things maybe for you to think about (in a non-patronising way).
For what it's worth, I do think her words were OTT, because as we know, most white people aren't like that. But the system is like that, for a lot of people, and that it what, she, and others like me, would be retreating from; the countless micro-aggressions to the overt racism..it is exhausting and affects your self-worth.
And these women (is it just women?) will be coming together with similar experiences, similar stories. And they will be able to empathize with each other, rather than just sympathize.
Ironically, those who seem less prejudice, are the ones who seem to understand exactly why places like these are wanted, and I believe more so, in the future.
We, as black people, are constantly marginalised. In this instance, we want to marginalise ourselves, to 'come together', that should not be a problem.
Besides, there are plenty of retreats which cater for your surroundings, your culture, look around you.
I haven't wanted to come across as snippy or as a "them" and "us". But just lately, whether it's Brexit, Trump, whatever, the divide does seem to be noticeable.