Pointing out the skewed demographics, if not outright racism and sexism in the software world, is quite on point in the context of TFA.
That's a deferent debate and completely unrelated to the point I was making about the guilt over seeing a janitor who's race was not mentioned, stereotype much?. You can try to twist my comment into something it is not but know that you do so with no basis as you do not know my actual views on the subject.
Should we be trying to bring more STEM into courses? Absolutely! and I'm pretty sure that subject is well known as an issue we need to solve as a country. http://www.huffingtonpost.com/donna-randall/increasing-diver...
I'm not questioning your views specifically. I'm making a comment on my own informal, but long-duration, observations of composition of technical vs. unskilled positions.
If you can provide racial demographics on people holding janitorial positions, please do.
There are numerous studies which show hiring biases for identical resumes with different names attached to them:
"Employers' Replies to Racial Names" http://www.nber.org/digest/sep03/w9873.html
Job applicants with white names needed to send about 10 resumes to get one callback; those with African-American names needed to send around 15 resumes to get one callback.
"Should you be concerned with name discrimination on your resume?" http://www.techrepublic.com/blog/career-management/should-yo...
"How an ethnic-sounding name may affect the job hunt" http://www.theglobeandmail.com/report-on-business/careers/ho...
My experience with janitorial and housekeeping staff through much of the US, including the west coast, is that they're frequently economically disadvantaged minority or immigrant in ethnicity. It's a low-education position.
http://www.bls.gov/ooh/Building-and-Grounds-Cleaning/Janitor...
Finding specific references to ethnic composition is difficult, but the incidental evidence is strong:
White janitors are exceptional and notworthy: "Even the Janitor is White" http://eric.ed.gov/?id=ED534328
A union history of west-coast janitorial labor organization emphasizes Mexican and Hispanic groups: "Unions and the Fight for Multi-Racial Democracy" http://dbacon.igc.org/Unions/11mulrac.htm
Working-class power will determine especially if this democracy represents the needs of African-American, Asian, Latino, Native American and other people of color, who are overwhelmingly working-class themselves.