Because racist.
Imagine if newspapers such as the Chicago Tribune wrote “White fireman risks life by saving two black children in a burning building...” It would never happen. And now some papers call firemen, fire fighters because of the desire to neuter the gender. Liberals are desiring a race way.
How about the white female killed at spring break? Why not report the complexion of the murderers? We have raised an entire generation that terms such as “white” or “white men” are especially bad.