I see nothing racist in Black Panther, and I see no racial hostility in the movie. As for the scene you talked about, you have to take note of the temperament of that particular character, that dude is an angry, hot tempered person and vindictive person and it reflected in all the roles he played, not only to the white woman. There is absolutely no white shaming in the movie, it reflects in the way the white man was treated using technology and how he also helped them in the fight.