To them diversity only means skin color. Diversity of thought is dangerous don’t you know?
There is a similar process at work in graduate schools and even at the undergraduate level for students. Conservative students are on the receiving end of hazing and discrimination. So there is a long period of being subjected to a hostile environment even before the conservative reaches the hiring process. For every conservative applicant there were MANY more who dropped out along the way.
Skin color, last names and what sex organs are rubbed against what... But you're right absolutely no diversity of thought.