It would be unrealistic to expect workers in any one local workforce of a particular occupation to match exactly the overall national ethnic proportion (or even the overall national male:female ratio). Local distributions of people by ethnicity are not the same as the national distribution, in almost every locality, and preferences for pursuing various occupations are not culturally the same across all ethnic groups. But socially perceived ethnicity also influences personal opportunities,[1] so smart employers go out of their way to look for talented people who have something to contribute not just in the usual places, but in all the places the employers' desire to hire talented people can be communicated.
If that's how I'm going to analyze my life, I had better be well prepared for weird things. It's silly to view my life trough the lens of stereotypes. Why did my parents not send me to private school? Stereotype. Why did that person turn me down for a date? Stereotype. Why was I encouraged to do X? Stereotype.
I would like to see us move towards a help people who need it mentality, and not have to worry so much about the ethnicity of the person who needs it. I realize that this isn't quite possible currently due to the strong correlation between the two at the moment, but it is the long term goal that would prevent this type of issue from perpetuating.