Targeted outreach is not remotely close to supporting a caste-based system of employment. I'd even argue that it's aiding people break out of the social and gender expectations, which can be viewed as an informal caste. I realize I might be making a massive generalization of South Asian history by comparing gender & racial roles with the caste system, but the point I'm trying to make is that it's enabling people to overcome social expectation.

I do agree that there are ways to implement this incorrectly, and my support is contingent on the following:

* Working with minorities in a field does not mean refusing to work with the majority. To ground this in the world of tech, reaching out to girls and underrepresented minorities does not mean turning away Asian & white boys.

* Steering them towards STEM should leave the agency in their hands. Even in the absence of all social and cultural pressure, it's a stretch to assume that we'll have gender parity in all fields. I'm confident in saying that software development(I specifically point out software development since some STEM fields have parity or even a slight majority representation of women) would have a greater representation than it does now, but I don't think it's 50%. If diversity initiatives end up pressuring people into fields they don't want to be in, then that's a failure in and of itself.