Recently, proponents of Conservative philosophy have argued that the media, institutions of higher learning, and many think tanks are dominated by "liberal thinking" due to a process of "indoctrination" that individuals must go through to join the ranks of these institutions.
Elements of the indoctrination include study and discipline, application of the scientific method, logic with conclusions supported by documentable facts, and the truth. I guess these guys are right and their theory has merit.
Two of the most influential people in my life taught me that a meaningful life includes a process of continually learning and teaching. As elements of life change, some truths change. Some actions that were viable prior to the technological revolution, no longer produce results. A man would be a darn fool to produce buggy whips and expect to make a living today. Due to technology, demographics, et al, some realities change.
However, some realities don't. Science and the law of physics, and yes, as Bill Clinton so succinctly pointed out, arithmetic, remain true regardless of the changes in the structure of human life. One plus one equals two and always will.
So people that gain access to the institutions through study, discipline, logic, and a quest for truth may merely be exhibiting a sane and rational approach to what they are doing.
The GOP/Tea Party through their mission of obstruction and attrition, merely exhibit very assertive incompetence, and appear to have absolutely no understanding, and appear to be incapable of fathoming the outcomes of their behaviors. Liberal conspiracy? I don't think so. How could any sane, rational person behave otherwise.