Seems like it was less intentional racism, and more exposing the systemic racism of the good ole boy system.
In all companies I've worked at, there has always been a strong statistical correlation between the race of the hiring manager and the race of team members. This has been true for Chinese, Indian, and white managers. For my managers, I have felt that the bias has not been intentional but rather subconscious. Nonetheless, it is usually obvious.
For my first job, my Indian manager had a team that was one-third Indian and one-third Chinese. After about three years, all the Chinese had left, while all of the Indians had stayed. When I pointed this out to my manager, he showed obvious embarrassment about the implication of racial factors in the makeup of his team. I liked my manager, and I don't consider him to be racist. However, race is always factor, at least in a subconscious way.