Not only does your comment miss the point by focusing away from the victim, it is racist.
“Arabs,” as you call them, are brown men in a white dominated society. They are at a disadvantage relative to white men and women because they are not white in a white supremacist society.
I am baffled as to how you can possibly know that the particular color of skin — which may represent literally hundreds of different ethnicities worldwide — is so readily identifiable as “Arab.” I would guess this is due to the onerous stereotype that all Arabs are violent terrorists; thus, anyone with light brown skin who is violent must be of Arabic descent.
Your monolithic characterization of Arabic peoples is disappointing at best.
Regardless, black women are subjected to appalling treatment on a routine basis. This is an obvious example, but other examples include less medical treatment as a whole, fewer educational and professional opportunities, etc etc. In all these settings, white women should be speaking up about ways in which black women can be given the kind of protection and opportunities that they haven’t gotten.