I dealt with that directly, the question is not 1/1 it is a question of percentage compared to the total population (and I did calculations assuming all characters who did in the movie based on percentages).
Yes, non-people of color died. As I mentioned in the article 1) There are less superheroes of color to spare (so the impact is higher) and 2) There are less people of color in the population (so the impact is higher).
Math.