If you believe the percentage is low, then why are you up in arms about them? If you believe the percentage is high (or sizeable) then why don't you believe there should be some compromise to understand their points of view?
There's no such thing as a Black Feminism in america. Never has been and NEVER WILL BE.
If you're talking about the mentally unstable black women on twitter and running ebony, those are fake feminists, and some are suspected agents controlled and employed by white supremacists.
On to your questions:
1) Yes their percentage is low but their voice is the loudest. They're divisive at best, and deadly dangerous at worse They are non constructive and need to be shut down.
2) We have, and always have, compromised with the black woman. These particular black women are dangerous. We understand their points of view. We disagree