Maybe we should include political leanings in affirmative action programs?
Maybe we should.
If liberals were forced to apply the principles of "affirmative action" in the field of ideas in the same way as they do for irrelevant crap like skin color, a lot of places would be in very deep shit. Universities and media organizations come immediately to mind.
A liberal is all for diversity, as long as it is diversity of externals like race, sexual orientation, or other such factors. Diversity of thought is another matter. Or in short, they want different packages, but identical contents.