Well, I hope you never have the chance to try that yourself. Who cares if both were black. The risk to the woman was tremendous, regardless of the fact she was armed.
The man had every intent on doing her grave harm or killing her, he had the opportunity (he had illegally invaded her home) he had the means ( he is a man compared to the woman-disparity of force) and he had intent (he was again illegally in her home). Non one can rationally draw any conclusion other than that he fully intended to commit horrible felony crimes against her.
She was justified in every way.
Best bet for you is to send your daughters to a self defense instructor, I do not recommend you try to train them yourself.
He came out of the closet.......feet first.
Nice shootin’ ma’am.