By the way, your comparison numbers of whites and Asians are from the 2010 census. In the most recent US Census estimates Asians are up to 6%, and it’s not really hard to exceed that in acollege population since Asians as a group are high achievers.
In contrast, Hispanics are up to 18% and African Americans are 13%. Both of those groups are greatly underrepresented - especially in contrast to other top private college, which are actively recruiting and funding minority students to get higher yields than this.
The percent of white students requires some explanation. The US Census Bureau includes white Hispanics in their count of whites, resulting in overlap. Excluding all Hispanics from the White category, the unduplicated White population is only 60% in the most recent estimates. So, the 58% whites at BC is roughly the same percent as in the general population.