Unlike the character in that book, just like ALL houseniggers, [who come in EVERY race and both genders] I doubt that Amarosa has any redeeming qualities.
And if she were the character in that book, she wouldn't care less what happened to any Black person other than herself, because the M.O. of a housenigger, first and foremost, is a person willing the sacrifice the many (All Black people in her case) for the few (or in her case the (1) one--herself).
Houseniggers rarely ever get anything other than a 'pat on the head' or token reward for their trouble, which makes houseniggering most agregious in that houseniggers sellout, undermine and stab in the back their own [people or class or gender, etc.], for mere goddamn 'pats on the head' and/or worthless tokens!