This isn’t specifically about that one post or person. It’s about the landscape of discussion. And yes, I get the whole “I can only speak from my own experience” argument and have heard that chestnut.
The problem is when he speak from our experience, which we have been doing for over 30 years, we are at best ignored. At worst we are violently attacked.
But now it’s A Thing, and rather than say “hey, what have women, especially women of color, said about this issue?” They go and develop some story as if generating it from first principles and pat themselves on the back. It’s like women of color exist in a different dimensional plane. “Invisible” doesn’t even cover it.